slow repairs

Had phone send in for repairs 22/12 already and now its at supplier...<br> so now i asked for early upgrade but the system does not allow it ,according to them about R140 short on average ,my bill is never under R1200 and still they are not willing to do early upgrade that is due in may ,, was even willing to pay in but policy .. so my R1200 a month will be going to another network as soon as my contract runs up