[dontgiveafuck]

Alright, I want to SE an iPhone X (Or better), but I'm not 100% sure what I should do. I've used amazon so much I assume I'm flagged on high tickets, I've done hundreds on amazon, not in huge amounts ever though, once maybe a 150 gbp purchase and thats it.
I know family with iPhone x's if a serial number method could be used. I know for a fact I can do amazon, easily, but I just don't know if I should risk it. I could do ebay, or apple, or maybe some other online reseller of refurbs? Would love a bit of advice, cheers.