SCAM!!!!!

SCAMMERS!! I bought a iPhone by them. Sent the proof of payment. Was supposed to courier at 9, they changed it to 12, after 12 I phoned them they didn't answer, didn't reply to my messages. After trying for about 4 hours to get a hold of them. He told me he'll give me a cash refund, but he wasn't able to send me a proof of payment. He also deleted the banking details he sent me on Instagram. DON'T FALL FOR THEM!!!! 10k I lost in just a few hours