Not satisfied with product and service

Since April this year we do not receive our 20 GB wireless data during the day and 20 GB wireless data during the night as was signed for when we start using the Wi-fi. We are being disconnected from the Wi-fi after using 10GB only every month. Several visits to their branch in Wonderboom Juncion to sort this out left us frustrated and as yet there has been no solution. At the branch they told us we must be able to use 40 GB data per month. During our last visit they confirmed that the problem lies with their technical division and promised that someone will contact us to sort the problem. When we received the call, the Telkom employee who called us claimed she could not hear when we speak and disconnected our call.