AIRTIME THEFT

I bought R60 Airtime today the 02nd of October 2018, where then tried to purchase data using the MTN App, the App kept on saying I have insufficient airtime however my balance reflected to be R59 when i checked on the App at that time. I then resorted to dialing *141# to check my balance which reflected differently from my balance on the App, it reflected to be R36. I called a the MTN customer services where the consultant said to have refreshed my number and advised that i should switch off my phone for 15 minutes, which I did and in attempt to purchase data the sae issue occured where the App said i have insufficient funds whilst relfecting a balance of R59 and a balance of R36 when i dialed *141# again. I was told to restart my phone several times but this still occurs till now #MTN_STOP_*****ING_OUR_AIRTIME