I just ordered a used Samsung S7 from ebay which will be arriving in a few days. I am replacing an S3. I am assuming that my current SIM card will not work. I would like to use the phone as soon as I get it, but I can't find a way to order the SIM card without putting in the phone ID (which I don't have, because I don't have the phone yet). Is there a way to get the SIM card ahead of time so that I can pop it into the phone as soon as it arrives? Thank you!