diff --git a/src/main/java/org/qortal/api/resource/CrossChainResource.java b/src/main/java/org/qortal/api/resource/CrossChainResource.java
index 42c0cbe5..0c61c83b 100644
--- a/src/main/java/org/qortal/api/resource/CrossChainResource.java
+++ b/src/main/java/org/qortal/api/resource/CrossChainResource.java
@@ -1045,7 +1045,7 @@ public class CrossChainResource {
 			)
 		}
 	)
-	@ApiErrors({ApiError.INVALID_PUBLIC_KEY, ApiError.INVALID_ADDRESS, ApiError.REPOSITORY_ISSUE})
+	@ApiErrors({ApiError.INVALID_PUBLIC_KEY, ApiError.INVALID_ADDRESS, ApiError.INVALID_CRITERIA, ApiError.BTC_BALANCE_ISSUE, ApiError.BTC_NETWORK_ISSUE, ApiError.REPOSITORY_ISSUE})
 	public String tradeBotResponder(TradeBotRespondRequest tradeBotRespondRequest) {
 		Security.checkApiCallAllowed(request);
 
@@ -1068,9 +1068,22 @@ public class CrossChainResource {
 			if (crossChainTradeData.mode != BTCACCT.Mode.OFFERING)
 				throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.INVALID_CRITERIA);
 
-			boolean result = TradeBot.startResponse(repository, crossChainTradeData, tradeBotRespondRequest.xprv58, tradeBotRespondRequest.receivingAddress);
+			TradeBot.ResponseResult result = TradeBot.startResponse(repository, crossChainTradeData, tradeBotRespondRequest.xprv58, tradeBotRespondRequest.receivingAddress);
 
-			return result ? "true" : "false";
+			switch (result) {
+				case OK:
+					return "true";
+
+				case INSUFFICIENT_FUNDS:
+				case BTC_BALANCE_ISSUE:
+					throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.BTC_BALANCE_ISSUE);
+
+				case BTC_NETWORK_ISSUE:
+					throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.BTC_NETWORK_ISSUE);
+
+				default:
+					return "false";
+			}
 		} catch (DataException e) {
 			throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.REPOSITORY_ISSUE, e);
 		}
diff --git a/src/main/java/org/qortal/controller/TradeBot.java b/src/main/java/org/qortal/controller/TradeBot.java
index afe5c5f6..0c22cb48 100644
--- a/src/main/java/org/qortal/controller/TradeBot.java
+++ b/src/main/java/org/qortal/controller/TradeBot.java
@@ -45,6 +45,8 @@ import org.qortal.utils.NTP;
 
 public class TradeBot {
 
+	public enum ResponseResult { OK, INSUFFICIENT_FUNDS, BTC_BALANCE_ISSUE, BTC_NETWORK_ISSUE }
+
 	private static final Logger LOGGER = LogManager.getLogger(TradeBot.class);
 	private static final Random RANDOM = new SecureRandom();
 	private static final long FEE_AMOUNT = 1000L;
@@ -203,7 +205,7 @@ public class TradeBot {
 	 * @return true if P2SH-A funding transaction successfully broadcast to Bitcoin network, false otherwise
 	 * @throws DataException
 	 */
-	public static boolean startResponse(Repository repository, CrossChainTradeData crossChainTradeData, String xprv58, String receivingAddress) throws DataException {
+	public static ResponseResult startResponse(Repository repository, CrossChainTradeData crossChainTradeData, String xprv58, String receivingAddress) throws DataException {
 		byte[] tradePrivateKey = generateTradePrivateKey();
 		byte[] secretA = generateSecret();
 		byte[] hashOfSecretA = Crypto.hash160(secretA);
@@ -233,7 +235,7 @@ public class TradeBot {
 
 		Transaction fundingCheckTransaction = BTC.getInstance().buildSpend(xprv58, tradeForeignAddress, totalFundsRequired);
 		if (fundingCheckTransaction == null)
-			return false;
+			return ResponseResult.INSUFFICIENT_FUNDS;
 
 		// P2SH-A to be funded
 		byte[] redeemScriptBytes = BTCP2SH.buildScript(tradeForeignPublicKeyHash, lockTimeA, crossChainTradeData.creatorBitcoinPKH, hashOfSecretA);
@@ -241,10 +243,15 @@ public class TradeBot {
 
 		// Fund P2SH-A
 		Transaction p2shFundingTransaction = BTC.getInstance().buildSpend(tradeBotData.getXprv58(), p2shAddress, crossChainTradeData.expectedBitcoin + FEE_AMOUNT);
+		if (p2shFundingTransaction == null) {
+			LOGGER.warn(() -> String.format("Unable to build P2SH-A funding transaction - lack of funds?"));
+			return ResponseResult.BTC_BALANCE_ISSUE;
+		}
+
 		if (!BTC.getInstance().broadcastTransaction(p2shFundingTransaction)) {
 			// We couldn't fund P2SH-A at this time
 			LOGGER.debug(() -> String.format("Couldn't broadcast P2SH-A funding transaction?"));
-			return false;
+			return ResponseResult.BTC_NETWORK_ISSUE;
 		}
 
 		repository.getCrossChainRepository().save(tradeBotData);
@@ -252,7 +259,7 @@ public class TradeBot {
 
 		LOGGER.info(() -> String.format("Funding P2SH-A %s. Waiting for confirmation", p2shAddress));
 
-		return true;
+		return ResponseResult.OK;
 	}
 
 	private static byte[] generateTradePrivateKey() {