Pathetic Service from Vodacom

Went into the Vodacom store in the Mall@Reds to get a contract on a tablet. The sales assistant was very helpful and efficient. When I signed the contract i was told that if there are any faults with the device within the first 7 days, I should return it and it would be replaced. However, the keyboard on the tablet was not working properly so I returned it 2 days later. I was told that the tablet must be sent to the warehouse to be checked and that I would receive an SMS once this was done. It is now a week later and I still have not received any communication from them. I called the store yesterday and was told that all the technicians are busy and that they would contact me. I have been waiting for a day and a half for a response from a technician and I still have not heard anything. The service is so pathetic. If this is the type of service Vodacom is giving, I would definitely not recommend this service provider to anyone.