What should I do if the customer made an unsuccessful transaction? Tanita Ridzuan Follow Kindly ensure whether or not the money in their account has been deducted. Next, identify the issue and submit a request to us HERE. Our business hours are from Monday to Friday, 9am-6pm. To cancel / void a payments from customer,1. Click on the "Transaction history" tab on your Boost Business App.2. Select a transaction you wish to void/cancel and swipe left to to void the selected transactions.3. Confirm the selected transactions and you're done!