Originally Posted by
dbuckho
From there it probably needs to be multiple cards - i.e. max out the Amex Business Amex annual reward limit, then rotate in whatever else you need/want (i.e. can you spend your way to DL Diamond)? Or perhaps get multiple Amazon cards - i.e. the Biz Amex and one of the personal Visas.
This goes to my original question, are non-Amazon Amex cards going to self-destruct if I start running Amazon gift card purchases through them? Are all gift cards disallowed or just generic ones like VGC? I currently have ~70K combined credit line on between my 2 Delta Amex cards so those could handle the overflow. And any reason I couldn't cycle the closed-loop syncro card without consequence?