diff --git a/ArchiSteamFarm/Bot.cs b/ArchiSteamFarm/Bot.cs
index 9290b2ad4..9fa0232d4 100755
--- a/ArchiSteamFarm/Bot.cs
+++ b/ArchiSteamFarm/Bot.cs
@@ -62,6 +62,10 @@ namespace ArchiSteamFarm {
 
 		internal readonly ArchiLogger ArchiLogger;
 		internal readonly ArchiWebHandler ArchiWebHandler;
+
+		[JsonProperty]
+		internal readonly string BotName;
+
 		internal readonly ConcurrentDictionary<uint, (EPaymentMethod PaymentMethod, DateTime TimeCreated)> OwnedPackageIDs = new ConcurrentDictionary<uint, (EPaymentMethod PaymentMethod, DateTime TimeCreated)>();
 
 		internal bool CanReceiveSteamCards => !IsAccountLimited && !IsAccountLocked;
@@ -75,9 +79,6 @@ namespace ArchiSteamFarm {
 		private readonly ArchiHandler ArchiHandler;
 		private readonly BotDatabase BotDatabase;
 
-		[JsonProperty]
-		internal readonly string BotName;
-
 		private readonly CallbackManager CallbackManager;
 		private readonly SemaphoreSlim CallbackSemaphore = new SemaphoreSlim(1, 1);
 
@@ -567,47 +568,6 @@ namespace ArchiSteamFarm {
 			return result;
 		}
 
-		private async Task<Dictionary<string, string>> GetKeysFromFile(string filePath) {
-			if (string.IsNullOrEmpty(filePath)) {
-				ArchiLogger.LogNullError(nameof(filePath));
-				return null;
-			}
-
-			if (!File.Exists(filePath)) {
-				return new Dictionary<string, string>(0);
-			}
-
-			try {
-				Dictionary<string, string> keys = new Dictionary<string, string>();
-
-				using (StreamReader reader = new StreamReader(filePath)) {
-					string line;
-
-					while ((line = await reader.ReadLineAsync().ConfigureAwait(false)) != null) {
-						if (line.Length == 0) {
-							continue;
-						}
-
-						string[] parsedArgs = line.Split(DefaultBackgroundKeysRedeemerSeparator, StringSplitOptions.RemoveEmptyEntries);
-						if (parsedArgs.Length < 4) {
-							ArchiLogger.LogGenericWarning(string.Format(Strings.ErrorIsInvalid, line));
-							continue;
-						}
-
-						string name = parsedArgs[0];
-						string key = parsedArgs[parsedArgs.Length - 1];
-
-						keys[key] = name;
-					}
-				}
-
-				return keys;
-			} catch (Exception e) {
-				ArchiLogger.LogGenericException(e);
-				return null;
-			}
-		}
-
 		internal async Task<HashSet<uint>> GetMarketableAppIDs() => await ArchiWebHandler.GetAppList().ConfigureAwait(false);
 
 		internal async Task<Dictionary<uint, (uint ChangeNumber, HashSet<uint> AppIDs)>> GetPackagesData(IReadOnlyCollection<uint> packageIDs) {
@@ -689,14 +649,13 @@ namespace ArchiSteamFarm {
 			return await ArchiWebHandler.GetTradeHoldDurationForTrade(tradeID).ConfigureAwait(false);
 		}
 
-		internal async Task<(Dictionary<string, string> Used, Dictionary<string, string> Unused)> GetUsedAndUnusedKeys() {
-			IEnumerable<Task<Dictionary<string, string>>> tasks = new string[] { KeysToRedeemUsedFilePath, KeysToRedeemUnusedFilePath }.Select(file => GetKeysFromFile(file));
-
+		internal async Task<(Dictionary<string, string> UnusedKeys, Dictionary<string, string> UsedKeys)> GetUsedAndUnusedKeys() {
+			IEnumerable<Task<Dictionary<string, string>>> tasks = new[] { KeysToRedeemUnusedFilePath, KeysToRedeemUsedFilePath }.Select(GetKeysFromFile);
 			IList<Dictionary<string, string>> results;
 
 			switch (Program.GlobalConfig.OptimizationMode) {
 				case GlobalConfig.EOptimizationMode.MinMemoryUsage:
-					results = new List<Dictionary<string, string>>();
+					results = new List<Dictionary<string, string>>(2);
 					foreach (Task<Dictionary<string, string>> task in tasks) {
 						results.Add(await task.ConfigureAwait(false));
 					}
@@ -1405,6 +1364,47 @@ namespace ArchiSteamFarm {
 
 		private ulong GetFirstSteamMasterID() => BotConfig.SteamUserPermissions.Where(kv => (kv.Key != 0) && (kv.Value == BotConfig.EPermission.Master)).Select(kv => kv.Key).OrderByDescending(steamID => steamID != CachedSteamID).ThenBy(steamID => steamID).FirstOrDefault();
 
+		private async Task<Dictionary<string, string>> GetKeysFromFile(string filePath) {
+			if (string.IsNullOrEmpty(filePath)) {
+				ArchiLogger.LogNullError(nameof(filePath));
+				return null;
+			}
+
+			if (!File.Exists(filePath)) {
+				return new Dictionary<string, string>(0);
+			}
+
+			try {
+				Dictionary<string, string> keys = new Dictionary<string, string>();
+
+				using (StreamReader reader = new StreamReader(filePath)) {
+					string line;
+
+					while ((line = await reader.ReadLineAsync().ConfigureAwait(false)) != null) {
+						if (line.Length == 0) {
+							continue;
+						}
+
+						string[] parsedArgs = line.Split(DefaultBackgroundKeysRedeemerSeparator, StringSplitOptions.RemoveEmptyEntries);
+						if (parsedArgs.Length < 4) {
+							ArchiLogger.LogGenericWarning(string.Format(Strings.ErrorIsInvalid, line));
+							continue;
+						}
+
+						string name = parsedArgs[0];
+						string key = parsedArgs[parsedArgs.Length - 1];
+
+						keys[key] = name;
+					}
+				}
+
+				return keys;
+			} catch (Exception e) {
+				ArchiLogger.LogGenericException(e);
+				return null;
+			}
+		}
+
 		private BotConfig.EPermission GetSteamUserPermission(ulong steamID) {
 			if (steamID == 0) {
 				ArchiLogger.LogNullError(nameof(steamID));
diff --git a/ArchiSteamFarm/IPC.cs b/ArchiSteamFarm/IPC.cs
index a3eddd781..01b3364e1 100644
--- a/ArchiSteamFarm/IPC.cs
+++ b/ArchiSteamFarm/IPC.cs
@@ -574,13 +574,13 @@ namespace ArchiSteamFarm {
 				return true;
 			}
 
-			IEnumerable<(string BotName, Task<(Dictionary<string, string> Used, Dictionary<string, string> Unused)> Task)> tasks = bots.Select(bot => (bot.BotName, bot.GetUsedAndUnusedKeys()));
-			ICollection<(string BotName, (Dictionary<string, string> Used, Dictionary<string, string> Unused))> results;
+			IEnumerable<(string BotName, Task<(Dictionary<string, string> UnusedKeys, Dictionary<string, string> UsedKeys)> Task)> tasks = bots.Select(bot => (bot.BotName, bot.GetUsedAndUnusedKeys()));
+			ICollection<(string BotName, (Dictionary<string, string> UnusedKeys, Dictionary<string, string> UsedKeys))> results;
 
 			switch (Program.GlobalConfig.OptimizationMode) {
 				case GlobalConfig.EOptimizationMode.MinMemoryUsage:
-					results = new List<(string BotName, (Dictionary<string, string> Used, Dictionary<string, string> Unused))>(bots.Count);
-					foreach ((string botName, Task<(Dictionary<string, string> Used, Dictionary<string, string> Unused)> task) in tasks) {
+					results = new List<(string BotName, (Dictionary<string, string> UnusedKeys, Dictionary<string, string> UsedKeys))>(bots.Count);
+					foreach ((string botName, Task<(Dictionary<string, string> UnusedKeys, Dictionary<string, string> UsedKeys)> task) in tasks) {
 						results.Add((botName, await task.ConfigureAwait(false)));
 					}
 
@@ -593,8 +593,8 @@ namespace ArchiSteamFarm {
 
 			Dictionary<string, GamesToRedeemInBackgroundResponse> jsonResponse = new Dictionary<string, GamesToRedeemInBackgroundResponse>();
 
-			foreach((string botName, (Dictionary<string, string> Used, Dictionary<string, string> Unused) keys) in results) {
-				jsonResponse[botName] = new GamesToRedeemInBackgroundResponse(keys.Used, keys.Unused);
+			foreach ((string botName, (Dictionary<string, string> UnusedKeys, Dictionary<string, string> UsedKeys) taskResult) in results) {
+				jsonResponse[botName] = new GamesToRedeemInBackgroundResponse(taskResult.UnusedKeys, taskResult.UsedKeys);
 			}
 
 			await ResponseJsonObject(request, response, new GenericResponse<Dictionary<string, GamesToRedeemInBackgroundResponse>>(true, "OK", jsonResponse)).ConfigureAwait(false);
@@ -1351,15 +1351,15 @@ namespace ArchiSteamFarm {
 		}
 
 		private sealed class GamesToRedeemInBackgroundResponse {
-			[JsonProperty]
-			internal readonly Dictionary<string, string> UsedKeys;
-
 			[JsonProperty]
 			internal readonly Dictionary<string, string> UnusedKeys;
 
-			internal GamesToRedeemInBackgroundResponse(Dictionary<string, string> usedKeys, Dictionary<string, string> unusedKeys) {
-				UsedKeys = usedKeys;
+			[JsonProperty]
+			internal readonly Dictionary<string, string> UsedKeys;
+
+			internal GamesToRedeemInBackgroundResponse(Dictionary<string, string> unusedKeys = null, Dictionary<string, string> usedKeys = null) {
 				UnusedKeys = unusedKeys;
+				UsedKeys = usedKeys;
 			}
 		}