Delta Air Lines error code #8502R comes while booking flights from Delta Air Lines.
The error comes at the point when users try to make the payment to complete the flight booking.
The error reads “We’re sorry. We couldn’t process your payment. Please use another form of payment to complete your purchase.”
Fixes For Delta Air Lines Error Code: #8502R
In our research, we have found that this is a payment-related issue, or for some unknown reason Delta Air Lines is declining your payment method.
If you have any proxy or VPN services on your device then make sure they are disabled as they may cause issues with online payment.
In case you are not using any VPN services or proxy then probably the issue is related to your payment method. We suggest you to try different payment methods and cards to see if that helps with the issue.
Lastly, if trying different payment methods is also not helping with the issue then we advise you to reach out to Delta Air Lines support or switch to any other airline.