Do you know whether the certification procedure was done online or by post? If you received a small tear-off card from a foldable document as your temporary card, then it was done by post. If you got a computer printout of your temporary card then it was done online. The ones done entirely by post take longer. Not only is there the time it takes for the post to go from the instructor to PADI, but also the data has to be entered by office staff once it arrives, so the process slows down even more.