vodacom - lost our device

My wife sent her almost new iphone in for repairs (bumb handset - the screen died). Vodacom has had it for 7 months. No job number anymore. No one can, or will, tell us where it is. We've tried phoning branches, customer care and repair lines - no cares - and if they aren't there, and a message is left, no one even bothers returning our calls. Her contract is going to come up for renewal soon, and she hasnt even really had much chance to use her phone. In fact, a sales person called her and pestered her about upgrading her contract - she asked to speak to his manager - when she told the guy what happened to her, he hung up on her - nice one Vodacom manager. Nice one Vodacom. Will be heading off to the police station later to report our device ******, and leave it in our insurers hands... maybe they will have more luck... Super disappointed with you Vodacom... never, never, never had such poor service in my life....