Lol....just snap a front and back picture on your phone with a copy in the cloud.My wifes was about a week to get.
You can log onto padi and look for your certificaitons. It will list them and the dates received. You can print tht and that should normally suffice till the hard card gets there.
BTW I make a color copy front and back of the cards and keep in in my log book.
Also keep a copy of the links to get to padi oin your log so you can show the operaton your certs if you loose your card. And tehn I keep 2 of each card that is significant. One in the safety deposite box and the other in my dive wallet or what ever.
Lastly get the instructor to make a log book entry in your book with the cert info . course date instructor and inst #