I once contact AG concerning the same problem you have' Below is the answer from AG Mobile representative.
"Please note that this is not open for public if there is a problem on the phone regarding that we normally arrange for the phone to be collected and send to our workshop."
AG Mobile Customer Support Agent
|AG MOBILE Customer Care:||0861 24 33 33|
|Head Office:||011 684 2860|
|Address:||2nd Floor, 23 Melrose Boulevard,|
| ||Melrose Arch|
| ||Melrose, Johannesburg|
| ||South Africa|
|For more info please email:|