opencart multiple payments

Hi,

We're on Opencart 3.0.32 with Journal Theme (We upgraded during lockdown and have just re-opened this week)

Customers are frozen on the payments page sometimes when trying to check out. They retry multiple times and this leads to multiple payments being taken by worldpay.

With the Journal theme there is an option to use Opencarts checkout page or their own and we have tried both with the same results.

I have checked the webhook is correct in Worldpay and this talks back to the website fine with a status of 200.

There are no errors on the server log or Opencart error log.

Any ideas how to proceed? Other payment methods such as Paypal work without issues.

Any pointers would be very much appreciated.

Scott