I have a Payflow Pro sandbox account. I am submitting credit card transactions to the sandbox using Payments REST API. I have found that if the amount is $1500 or greater, then the transaction fails with error: INSTRUMENT_DECLINED The instrument presented was either declined by the processor or bank, or it can't be used for this payment.
However, the same fake credit card number works fine if the amount is less than $1500.
Is there a limit that I can adjust somewhere? I've done some searching but haven't found anything.