I suspect Telkom is cheating me out of my Data

I purchased 60gigs prepaid telkom data for R1800 plus a Huawei B593 Lte modem from Gateway Telkom store. The 60 gigs was apparently 'used up' according to telkom. I say impossible. The data usage counter on our phones and tablets clearly show evidence of this. My family and I browse the net and send emails. The 60 gig Lte deal supposed last us for a year at the very least. As a family .... we consumed less than 3 gigs per month on adsl. Now 60gig on lte or adsl is the same amount of data .... only difference is the speed. I was forced to go the lte mobile route because of the endless adsl hassles. I suspect that telkom has a technical problem and refuse to assist or credit me for this unaccounted for data usage. I have logged a complaint but cannot get any usefull feedback.<br> After making several failed attempts to get any usefull feedback via telephone, cellphone, website &amp