How do i stop sms after balance check and recharge

Hi Jammal, you need contact MTN support for them to check your line. If your line is on Betatalk tariff plan, it is possible that the recharge was credited in your Betatalk...

I was trying to check my balance but but keep saying error

Precious, thank you for contacting us, before we go further MTN ng does not access to use ur data, we can only subscribe ur platform, and ur issues some the network flactuation...