diff --git a/frontend/src/components/RobotInfo/index.tsx b/frontend/src/components/RobotInfo/index.tsx
index 8d2d2f9e9..0b22e77f3 100644
--- a/frontend/src/components/RobotInfo/index.tsx
+++ b/frontend/src/components/RobotInfo/index.tsx
@@ -92,11 +92,13 @@ const RobotInfo: React.FC<Props> = ({ coordinator, onClose }: Props) => {
     if (robot != null && slot?.token != null && robot.encPrivKey != null) {
       void signCleartextMessage(rewardInvoice, robot.encPrivKey, slot?.token).then(
         (signedInvoice) => {
+          console.log('Signed message:', signedInvoice);
           void coordinator.fetchReward(signedInvoice, garage, slot?.token).then((data) => {
+            console.log(data);
             setBadInvoice(data.bad_invoice ?? '');
             setShowRewardsSpinner(false);
             setWithdrawn(data.successful_withdrawal);
-            setOpenClaimRewards(!(data.successful_withdrawal !== undefined));
+            setOpenClaimRewards(!data.successful_withdrawal);
           });
         },
       );
@@ -307,6 +309,7 @@ const RobotInfo: React.FC<Props> = ({ coordinator, onClose }: Props) => {
                   <Grid item alignItems='stretch' style={{ display: 'flex', maxWidth: 80 }}>
                     <Button
                       sx={{ maxHeight: 38 }}
+                      disabled={rewardInvoice === ''}
                       onClick={(e) => {
                         handleSubmitInvoiceClicked(e, rewardInvoice);
                       }}
diff --git a/frontend/src/models/Coordinator.model.ts b/frontend/src/models/Coordinator.model.ts
index 376b6e3ab..d8eadd07b 100644
--- a/frontend/src/models/Coordinator.model.ts
+++ b/frontend/src/models/Coordinator.model.ts
@@ -372,7 +372,7 @@ export class Coordinator {
 
     const data = await apiClient.post(
       this.url,
-      `${this.basePath}`,
+      `${this.basePath}/api/reward/`,
       {
         invoice: signedInvoice,
       },