DISGUSTING MTN SERVICE!!!

They cut off my son's mtn account; a fault of theirs, not my son's I called 083135 to ask them to please look into it as my son cannot call out. 083135 DOES NOT WORK FROM HIS CUT OFF LINE, and yet the consultant Size insists he must call 083135??!!!! A lady 'Size' stubbornly told me they cannot help and he must phone in. HE CANNOT CALL IN Itold het!!! She was unwilling to call him, and help him out. DISGUSTING USELESS CUSTOMER SERVICE FROM MTN!!!!!!!!