Been there, tried it. If you have a based on licence you must collect it at an FSDO after going through the paperwork exercise. Verification from the CAA, application to the FAA, wait untill the letter of verification comes back from FAA then make an appointment to collect a temporary cert. from an FSDO then a card is posted to you within a couple of months
If you have a stand alone FAA cert it's $2 by post.
DO.