Am unable to make calls from my MTN number and am not around in Nigeria to do either since upgrade or sim reregistration

I have registered my sim but I'm unable to make calls

Emergency calls only no Data Network want to unlock my mtn Network to make calls and send messages from this number 0782222392,MA GDA VAN STADEN, ID NUMBER :7412200732089,HOME...

I can't call Nigeria with my MTN number from United Arab Emirate and i can't even link my NIN number

My sim card is currently damaged but I do not want to loose my number, so I recharge it every month. Is this enough to stop the number from being deactivated?