MasterCard Pro payments failing?

[ohno]

We have suddenly experiences MasterCard payment failing with our Pro integration. The message we get back is : -

TIMESTAMP=2020 d03d30T15%3a22%3a50Z&CORRELATIONID=bf56e8e953a5&ACK=Failure&VERSION=59%2e0&BUILD=53816554&L_ERRORCODE0=10527&L_SHORTMESSAGE0=Invalid Data&L_LONGMESSAGE0=This transaction cannot be processed. Please enter a valid credit card number and type. L_SEVERITYCODE0=Error&AMT=12%2e13&CURRENCYCODE=GBP

At first we though user error but this has happened 4 or 5 times now since last Friday! It's costing us lost sales, we do not have a MasterCard to test with.

[MTS_Chiranjeevi]

Hi @ohno,

Thank you for contacting PayPal community.

We apologize for any inconvenience.

This should be an issue with the customer/user card information. Can you please try to process a test payment with card which is not linked to your PayPal account.

Please refer the guide link for reference.

Sincerely,

Chiranjeevi

[ohno]

This was TWO MONTHS ago. We've since hired a developer to integrate Stripe payments! Cheaper & no failures. Pay Pal are way out of touch these days.