Incorrect data received for 4 months so far

Case number: ***6<br> <br> I upgraded my contract in March of this year to the samsung S5 mix contract which comes with 1GB telkom data and 1GB all networks data...up until today I have only received 150MB each month.<br> <br> I called the call centre and they logged the query, case number above.<br> <br> I have called the call centres a few times for feedback, but they are not able to assist. I have gone into the store as well.<br> <br> Please look into this, it has been a few months now.<br> <br> Please also refund my money for the data that I have not received thus far.