Already bad adsl service. Now also mobile.

I got a notifaction last night that my all network data bundle is finished. So this morning I purchased 2g for R139. I was able to get onto the internet again but only for a short while. I connected my phone via hotspot to my laptop also very briefly. Watched a video clip of 4 minutes. Thereafter I got the message saying my data has been used up!!!!!! I had this mobile nr and internet from 2014 and tethered alot since then. It never happened like this! I phoned into the support centre to check out whats going on. They said they could not see ANY thing I bought today on the system except for R50 airtime, which was bought after the R139! So my purchase is showing on my bank account but now telkom says nothing shiws and I must phone them back in 24 hours!!!!! How is this even possible?? I even got,the message from telkom saying my 2g all network data is allocated to my nr!! But now they say they dont see any purchase????? Plus they cannot help me immediately to solve this! Something very fishy is going on. I want my 2 g data and very soon otherwise I will take this to all social media outlets. I was quite happy with telkom mobile all along. Unlike their adsl service which is a complete nightmare! But now this???? I feel very unsafe to buy anything with telkom now again!