Sincerely hope you're having a great day!
I've read your problem and, before providing a solution, would like to analyze your website. Then, I will provide a solution to you up here - on the forum.
Could you share your website URL? And if your website is password protected, then also provide a password
Hope you're having a great day!
I just tested a purchase on your online store and I encountered the problem. Did you try to contact the support (Payfast??) team of the payment processor you used?
What country is your store based in? Are there no other payment methods to use? Having your customers redirected away from your store before they can pay can increase the abandoned cart rate.
If you found this comment useful, hit the 'Like' and 'Accepted solution' buttons.