Double deduction from wallet

I have complained before to you in writing 22 June and you said you will look into it. It has happened again. I use your app, select my tickets and when I check out to pay from my wallet. The app hangs. After 15min of waiting I close the app and reopen it. This will deduct the money from my wallet but the tickets are still in the cart unprocessed. Last time I checked out again and it deducted the money again from my wallet.

This time, I have not checked out again. My wallet was R168.32 and now after taking R70.00 for my tickets is R98.32.

Please refund my money as my tickets are still in my cart and please refund the previous instance of a double deduction R28.00 on 22 June 2019.

kind regards Ingrid