Who called me from 07421729422?

Rang telling me he had a refund owing me from an appliance purchase. I always wind these callers up if I can to gain more information on them. So I said I've not purchased any appliance. He knew our name and address, I didn't confirm it to him. He said he was working for Domestic Appliances in Refund department. When I asked what I purchased he said a washing machine. When I said I haven't bought a washing machine for years, he said the refund was for £49 and not from a recent purchase! I said send me a cheque then. Oh they don't do cheques! I carried on with telling him I knew what he was after, my bank details etc. Oh no he said. Well I told him how would he have information from Currys about my purchase then? He said I overpaid, (I'd not even bought one from Currys!). This continued for a while as he was insisting he give me a refund to my bank card! I said I won't have the same bank card now so not to bother for £49. Send it to charity! But obviously this caller could fool some unsuspecting person especially knowing my address, although he had the wrong name! He asked me if my name was my husbands name and I'm a woman! I just wanted to report this as I've not seen this number recorded on the site and its a dead number if you call it back.