Cell C service sucks!

I have been a cell c customer for more than 10 years. As payment for my loyalty they have offered me the most ********** service for the last 2 months. No-one can tell me where my phone is which was sent in for repairs and no-one can tell me when I will get it back. It's been almost 2 months. I didn't break the phone...i have it for a couple of months. It's a manufacturing problem . Yet I am paying for my contract. 2 individuals working for cell c agrees this is unfair. 1 store manager says it's not his problem because they offer a service and the phone is the manufacturers problem . And they have loan phones but not at the moment "so can I make a plan". ****iest service ever. I am at a loss for words.