pathetic customer service

I received a blackberry 9720 as a gift from my daughter-in-law in the month of december 2014.after 5 months of use I started experiencing problems as the cellular device wasn't charging.I took the phone in and only received it after 7weeks.I was not kept informed during the entire process but had to constantly go into the branch to check for an update and eventually got my phone back.its only been 2 months since the repair and the issue has started again.I took the device in again and still no customer service.when questioned about why there was a delay with the previous repair I got no answers.I was advised that it would take 21 days until I receive my cellphone but cell c failed to live up to their standards and also whenever I requested to speak to someone in management I was advised that they are not available