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

why am i unable to make and receive calls on my mtn line. i cant recharge either . my number is 07066353486

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

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

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...