When transaction declined, declined details sent through when trying again

Hi,

I have an issue where if the customer enters the wrong credit card number or ccv number the first time, it gets declined which is fine. However if they then correct the error and send through the correct details, the old declined card number or ccv is still being sent through to Stripe and therefore gets declined.

The only way to get around this is the refresh the browser. We use cloudflare. Could it be something to do with Cloudflare?

Thanks