Poor service

I would like to complain about vodacom, I took 2 contract iPhones in August, one had a problem before the end of that month, sent back via Game stores for repairs, It has been going back and forth since, still not repaired, I have been paying , for the past 3 months,for the phone I don’t have, got a call from The Glen Game store last Thursday to come and collect, phoned by Game on Friday to ignore the message, they will phone me as soon as they authorization for a new phone from vodacom, I phoned Game store today, was told that they are still waiting for auth, tried to call vodacom customer care, couldn’t get through, I am sooo disappointed, won’t be upgrading,thanks