Bad customer service Vodacom

If I could give them a 0 or -10 I would.... Firstly their staff at Vodacom repair centre at Alberton where rude after booking in my fiance's phone in wrong the first time then only after booking it in a second time they can't do anything further. When I put in a customer complaint on their "customer care" email address I'm told to address my matter to their repair centre directly!! For such a big company it's s dumb policy especially for a loyal customer who has been with them. How are they treating their customers