FNB MTN Airtime instead of Data received.

FNB has deceived me into buying MTN Airtime instead of data. I have proof that the app isn't working properly. I received a call 9 days after my complaint was escalated, instead of within 48 hours. Instead of an apology all I hear are excuses. FNB is a bank that can't take responsibilities for it's actions. The consultant basically called me back to indirectly tell me that I am lying about the process I followed.