I sold a smartphone, the buyer has contacted me saying that the phone is not as described because they are having network issues, basically they can't get a signal. I was very specific in my listing stating This phone is locked to 02, so please don't bid for the phone unless you want to be connected with o2 or you are willing to go and get it unlocked. The buyer is demanding a refund, the tone within his email is slightly threatening, saying he doesn't want any trouble, so please cooperate and he expects a refund when I receive his message. The phone is exactly as described within the listing, so am I obliged to refund?



