Bad attitudes and Musica

I bought a gaming headset from musica about 3 weeks ago i then returned it and the manager told me i could only exchange it for something in the shop. so first of all the stock of gaming headsets was so pathetic they only had 3 headsets to choose from which i then felt pressured to buying a more expensive one i took it home once i started using it the sound quality was terrible wasnt like the headset i had before i then phoned them told them about my situation the lady then sounded annoyed and said fine i could come back and exchange it again. When i get there they all were extremely rude to me i then had to buy the only other headset they had there and the manager told with a very awful attitude \this is the last exchange you can do"so i get home and plug the headset in i hear an annoying buzzing noise in the headset. So now I'm stuck with headset and i cannot return it. absolutely pathetic the way i got treated in that shop I'm not happy at all spent over R1000 and honestly im so disgusted at musica will never buy from them again !!!!"""