Fourth time for repairs all my downloads removed

I have been sending my samsung tablet so many times(4) to Vodacom and yet they have not repaired the device. They keep formatting and removing my downloads which cost me thousands of rands. I sent my tablet for repairs a week ago and it came back only formatting. The complaint said that that the charging port was not working and that the download were not working, Also the device heats up. Only formatting was done and nothing to repair the charging port. We ask the person working to inform what was done and she was so rude. She said we must phone head office and its not her job to phone. She said well if it'snot repaired we must book it again. She does not have proper communication skills and should be placed in a position if she is grumpy all the time. Her name is Diveya Harrie and I am disgusted with her customer service. I am fed up with Vodacom as they keep formatting and not repairing the device. Who is going to reimburse all the downloads I paid for. I was promised that they would allow me use WIFI but only to be let with the grumpy Diveya's response. She seems to know nothing about assisting customers and being friendly. Vodacom needs to give me feedback