Ah. I gotcha. I'm outside of the 14 days now. I'll have to sell it on Swappa if I don't keep it. As I'm currently fighting between it and my 6s Plus.
That might even be the better plan! Just looked and seems they are going for about retail price. Hmmmmm, might wait for my SIM now and if it doesn't work, then just go Swappa. I bet that will be better than HTC return for many reasons.
Oh and looks like folks on XDA are starting to get their free gift..... an USB C Cable. YAAaaaaaaaa