Fed up client

On the 14/03, I bought data using *111# for 1G. I got a technical error after confirming the purchase. Because i assumed it didnt go through, i did another purchase immediately and STILL got technical error. To my surprise, 2 data purchases were activated and I logged a call with customer care to reverse the 1G, ref ***. On the 15/03, service request 1-1Q5LUVA confirmed request was escalated and will a response. Immediately after this sms, I got anither sms that the ref was closed. I called and was assured by various agents this case was not closed and still under investigation. To date no one ever called me with feedback and obviously the data never reversed! 31/03 pruchased data for 500MB and it took the whole to daty to reflect to which your agents confirmed there were issues. Yesterday i bought data at midday for 1G, got an sms confirming request has been sent and since then no data! I called customer care at 5pm agent said theres no record of a requested purchase or even an sms on my line. I tried again this morning - got request sms for data and STILL no data. This time i took a screen shot of the sms. I am severely affected here and i need urgent asisstance.