Rude consultant from coverage call center.

I'm sooo much disappointed about the unprofessional behavior and customer service I've recieved from support coverage department, I called MTN just now to get assistance regarding my 5g home router.this is what is written on my contract "with MTN If your MTN uncapped data is depleted, it means you have reached the Fair Usage Policy (FUP) limit for your plan. This means your download and upload speeds will be reduced until the start of the next billing cycle, not that your data is completely gone. You can still use your data, but at a slower speed" Meaning that if I deplete my FUP I will use data at a lower speed which is fair. So now I can't access any internet at all(it says connected without internet) When i called they said it's because my access is depleted and I need to buy data.mined you,it's in the middle of the month. Then the consultant was too rude when explaining all this.im very very much disappointed here.