NobleSeed:
very possible..

Wallaces:

sir please can you explain how or instances it could happen?

NobleSeed:
how did you finds out first of all?
Have you heard of simcard cloning before?{phone number}

Wallaces:

well I was registering for something, and I was to verify my BVN(code to be sent to the phone number linked to my bvn), but then another phone number popped up along side, the phone number linked to my bvn and was given the option to select which of the phone number will receive the code

NobleSeed:
no cause for alarm then.
Just go to the bank and deactivate the strange number.
After that try call the strange number and finds out who's the owner...
A friendly phone call