Unfair practice by Revibe

I bought a phone advertised as in excellent condition. I received it on the 2nd December and upon opening the parcel the phone was scratched and when I put my SIM card into it, it was carrier locked so it's not operational. I, within 20 minutes of receiving logged a claim on their website. A couple of days later courier phoned me and said he was at my gate, this was the address I had changed and I explained to the courier he was not at the correct address. He said he will get back to me which he never did. My concern grew that the 10 days return policy would expire. By the 6th December I contacted Revibe to please assist by contacting the courier and provide the courier with the correct address, keep in mind there were still 6 days left before the 10 day return policy was to expire.And that's when the emails between Revibe and myself started... emails back and forth. They said to me the claim was cancelled as I hadn't given the phone to the courier but they did not contact the courier with the correct address. More emails back and forth and it went on past the 10 day return policy and because the return period has expired I can no longer return the phone and be refunded. I was well within the period of return. The way this has been handled by Revibe is nothing short of unfair. I hope that people looking to purchase anything from Revibe thoroughly do their homework before purchasing from them.