Vodacom repair centre *********** repair staff

I have booked my phone in 01/08/2015 to get a cracked screen fixed after the frustration of the screen that was loose. <br> <br> The screen was replaced with a new one and yesterday I saw the screen is loose again on the right top side, I pressed the screen softly to see if it will clip back in but while pressing the screen cracked on the loose side. Took the phone back this morning explained to them what happened. Got a phone call from Vodacom repair centre Polokwane saying that I have to pay for the new screen.<br> <br> I feel it is not my fault if they fitted the screen correctly, the screen was not suppose to come loose and then I didn't have to press it back.<br> <br> Can this please be sorted out. <br> <br> Job Nr - ***1<br> <br> Here's also the job number for 01/08/2015 - Job nr - ***3<br>