Default Goods returned back to the store

I contacted HI Fi Head Office regarding default car tape returned to the store which Godfrey at the store couldnt help me with anything reasonable & Marco regional manager said that they will take it for repair & I will be called on 2015/12/21 for collection after refusing to refund or replacing the tape even when I explained that my car is with a whole no tape in it, and the purchase of the tape does not serve its intended purpose anymore & the tape was just purchased 3 weeks before it went off on itself as they always sell customers default & getting away with ripping us off. I called the store on 2015/12/22 & 23 I was told Marco is on leave & suppliers are closed & I will not get any refund or replacement by Godfrey. Hi-Fi sucks, what kind of regional manager is Marco lying to customer & the next thing he knows he is going on leave, Hi Fi must just refund me I am no longer interested in anything I dont want to hear anymore nonsense from them they must just give my R2700 cash back with immediate effect, Marco must be ashamed of himself, he has no pride in his work & does not value customers at all, Godfrey must be taken to customr services classes he really needs them. My money