Unhappy customer

I bought a cellphone at Woolworths in adderley street Cape Town May/June last year and in two weeks the phone showed signs of freezing then I sent the phone to Woolworths so that it can be booked for repairs, then while my phone was there I was called by bodacom technician asking me if I am going to pay as they are going to fix I answer them saying that the phone is on 2 years guaranteed,then vodacom told me that there is nothing they can do, they gonna sent it back then I was called by Woolworths to come and fetch my cellphone ,I ask them if they can give my money back to buy another or give another cellphone but Woolworths !Management refuse hence I was furious I left the phone there from 15 December last year but still not fixed, the only thing they do was to call me and fetch my phone and I called their customer service and a guy answered me saying that there is nothing they can do after 5 months the phone was laying in their cupboards I went there to fetch my phone and I found it not fixed it was last week Thurday was dead now could not charge anymore and I do not like that I have to throw R2000 in the bin is very bad because I'm not rich