Horrible Service

Bought my mother a phone cash and was told if there were faults it can be returned in 7 days, the phone would most of the time turn blank and freeze so yesterday the 28th my mother returned the phone, the lady that was working on the phones was extremely rude did not want to assist and were told that she does not see anything wrong with the phone and is not taking it, refused to call the manager and said the manager was an employee like her, only when customer service was called she disappeared for a long time and then agreed to take the phone and still being rude and speaking like she is doing us a favor and we are not paying customers and said other Stores would take the phone and not reimburse or exchange it, she did exchange the phone and day wasted spending hours at one store and made to feel bad by someone we have never even met, you can check the cameras, my mother is old and did not deserve that shame, please teach your staff about customer service no matter the branch they represent your company.