I had a similar issue. My previous provider locked my SIM so after 4 phone calls to them, visit to retail store, online chat, I finally got everything ported over this evening. Nonetheless still can't get the Black Friday deal.
Same with my previous provider. I'm not worried about the price changing after 15 months. Who knows what deals might be available at that time so you can always change your plan, even earlier if it's worthwhile.