Poor service

Well I have phoned,email, post on Facebook. Still not satisfied with Vodacom. I had a Sony Xperia Z I had to send it in for repairs, it came back not fixed...had to send it back for another two weeks...still not fixed but then I upgraded...3months wiyh a new Sony Xperia Z3 and the bottom speaker stopped working, audio jack didnt work from the start...so i send it in for repairs at Centurion waited 2 weeks, phone came back...audio jack fixed, bottom speaker still mot fixed, and with scratch marks on the side, white marks on the display when viewing a white image(or the startup screen of Vodacom) that white marks came with it from repairs!!! Sooo after a big fight they said please send it back and they will sort it out...after I calmed down I send it back...got my phone back yesterday with the report \no fault found". This is pathetic!!!! How can Vodacom keep a good name while stuff like this are happening?! I am very very unhappy with you guys!!!!"""