EDGARS BAD SERVICE

This is what happended, I brought my phone into Edgars canal walk on the 7 february 2015 and said my phones blackberry 8520 is not working and stated the problem, they took the phone in and told me within 7 days the ph will return, about 10days later I went to store to hear then someone else said the ph is not back and now it will take 4 weeks its well ova a month and still no feedback every time I called to hear they say they will return my call and nothing happens I want a answer and I need a ph coz this just pathetic , sick and tired of wasting petrol money to come to mall all the time and wasting airtime to follow up when they should follow up. I just called again the store and admin lady says its the 1st time she hears about this one bladdy month later this is bull now !