Teljoy - still no Joy

Our fridge which we have paid for every month without fail, has been in three times, and still not fixed to scratch! We have been without our fridge now for almost 2 months, is this how a customer gets treated? I call to speak to a supervisor but no one calls back, I guess the only way to get a reaction is to not pay! Then Teljoy will quickly call!! After all this, why is it so hard to honor your agreement and replace with a new unit ? Instead of disgruntling your clients with poor repairs and then poor service. CPA is my next step if this is not sorted, for me it is now the principal of good customer service especially considering that I have honored my side of the contract.