The Mastercard phone verification process is far too rigid and inflexible. Firstly, they put my card on hold because of 'possible fraud' because my son ordered a pizza from 'Pizza Hut' online in May 2018. When I called the number to get the card released they asked a never-ending number of personal identification questions, all of which were easy to answer, i.e. DOB, Address, Mothers maiden name , etc. However at the end of the process they confirm that the answers did not match their system records and therefore they could not proceed. I know my DOB and all the other answers. They would not say which question did not match their system so you are left in limbo. I have called back 5 times now and they are still rejecting my verification. Frankly, it's a pathetic system.