Paying for minutes I don't receive

I went into the Mtn branch at Brooklyn mall and I got my contract, everything worked out fine until 3 months ago where Mtn didn't include my monthly minutes anymore. I have contacted mtn support via phone and email, they tried to resolve the issue but they didn't understand my issue that I am paying for a service I don't receive which regards my monthly 50 minutes airtime.<br> <br> I can see the minutes reflecting online when I log in to my profile and on my monthly statements, I don't know what is going on but I need to resolve this right now!