Bad service

Good day team please be advised that so angry with Vodacom 4U store at west gate mall due to on the 14th of December I submitted my tablet for repairs. Then I got a call from one of the guys at the mall saying I can come and collect my tablet but it was not fixed and I was Told at the store that they don’t have parts that was on the 26th when they called me. So what is the point of paying for something then they don’t have parts but the debit order goes every month. And fuel is expensive this days