SuperSwift website is not working 100%

The website of Superswift (https://app.superswift.co.za/ ) does not work 100%

I experienced this problem:

1.1. My payment failed because of a lack of funds in the account that I selected to make the payment for the transfer. 1.2. I transfered enough money to make the payment 1.3. I then tried to complete the transaction electronically. 1.4 There is no means to complete the payment electronically. 1.5. I want to cancel the transaction and create a new one. 1.6. I am not allowed to do that.

I wish and hope that SuperSwift can iron out this problem to give me a much better user experience.