Also, have you read the terms and conditions of the repairs service? From the T&C on the Vodacom website:
"1.2 Vodacom makes no representations or warranties, whether express or implied, and assumes no liability or responsibility for the proper performance of the Services and the Services are thus used at your own risk. In particular Vodacom makes no warranty that the Services will meet your requirements, be uninterrupted, complete, timely, secure or error free."
The repairs service may or may not be related to Vodacom (Pty) Ltd, but I guarantee that they have similar terms of service.