Poor service/Bad attitude

I bought a DVD Player end of October from Pick n Pay Hatfield and in December it started to give me problems, so I took it back the first week of January hoping for an exchange but they told me about their 30 days exchange policy and that they can only take it for repairs. Last week Friday I went there to check if maybe its back from the repairs since I didn't get any call from them ,that Friday I asked the lady who took my details the day I left the DVD at the store , when can I expect my DVD player? Without checking or maybe calling the supplier or whoever she said she is not sure when it will return and I asked if it can take 4months and rep**** with an attitude maybe. Like really now !! bear in mind that I bought the DVD cash and its been a month or more not even a call. I m so disappointed such a big store ,with a slogan \inspired by you"to get such a bad service.Even on the day I took the DVD the service was very poor it took about 45 minutes to be assisted."""