Worst service

I give in my cellphone six weeks ago for an update and just n rubber to be put back in, the guy at vodacom told me it would be back in three weeks i got an sms after three weeks that said it is only now at the cape town hub, so i phoned him again after four weeks and he said it would be there in 2-5 days. After that i have phoned plenty more times and they keep telling they will get back to me. ITS WEEK SIX and i am still waiting!!!! At this stage i am very angry and without a phone for six weeks i think it is unacceptable!!!