From my personal experiences I cannot recommend using Carphone Warehouse at all was due an upgrade asked for a Samsung Galaxy s20 in grey they sent me a blue one and I was supposed to just accept that after contacting them numerous times about their mistake they admitted that they had no grey phones in stock that is why a blue phone was sent ended up having to cancel the contract and ended up losing a good couple hundred-pounds there was no help whatsoever in correcting their mistake I had to suffer and lose money so please be aware do not use Carphone Warehouse go to your service provider instead I will be contacting trading standards