Samsung Galaxy S6

I have been without may cellphone from 29/06/2015 up to today 02/09/2015. The phone started to make funny color and I took it in. I received it back with the glassed being scratch, the steel cover scratch and the phone could not be unlocked. Vodacom Repair said it is not there problem I haven't to go to a Samsung shop to sort the unlock problem out and then I can book the phone back in again. Samsung said it was not there problem. The phone was book in again and they replaced a lot of stuff on the phone I have all the records. I received the phone back again from the repair department but no it sounds like there is a loos ***** in the phone when you shake the phone. Everybody in the shop can hear the loos part but not the person that works for Vodacom that needs to fixed the phone.4 time we send the phone in and every time they said there is no fault on t he phone. But Every body in the shop even the customers can hear the loos part in the phone but not the person repairing the phone. Even the staff of Vodacom can hear it and understand may challenge. Till today I am still waiting and Vodacom customer care doesn't care...