Allocation of mtn primary offer share

Primary offer

I paid with card but is shows pending since on Sunday I didn't get credit either in my wallet account or returning to my normal account what should I do

My primary offer keeps sending bvn : you are not online

Good day Please I want to know more about this mtn primary offer How it works nd why mtn is demanding for bvn number from bank because is very risky to give out bvn number...