Oh wow! That's terrible. Thanks for sharing your experience on here. I'll definitely reconsider using this service now having read how it worked out for you. I haven't heard of ReBuy before but I have read on here that people have used them and had good experiences so I guess I'll give them a go too.
That wasn’t the experience I had trading in an iPhone 11.
First attempt exited as the phone screen went to sleep, nothing to do with the delay in the technician looking.
Second time it took 3 minutes but we got the payout quoted and it was seamless. Easy way to avoid the postal wait and potential issue of shipping a phone to get assessed.
I would utilise the service again.
YMMV.