paying for a contract I can't use!!!

Got a microsoft lumia 535 about 3 months ago via cellc direct (084145). Since the beginning it had touch issues, but I chose to ignore it after finding out its normal for that specific phone. What I could not ignore was what happened last week. Suddenly it started charging very slow. When I say very slow I mean 22% in 6 hours. My complaint is not about the phone strangely, but about about cellc uitenhage branch not supplying some sort of curtacy phone while the lumia is in for repairs. Which according to the guy at the store could take months because it has to go to Jo'burg. Now I understand that maybe it is part of their policy not to supply curtacy phones but I don't understand that I have to keep on paying for a contract which is unusable due to the fact that I have NO PHONE!!! Please cellc respond positively!!!