When did I activate my mtn line

Pls I need refund of my 2.5gb to MTN line pls Refund my data

My mtn line is asking for puk number and I have one more attempt before it will finally get blocked,the sim is really important to me

I got a mifi and your agent tried to activate the line without any success. Then she asked me to take it home and keep trying which I did only to fine out from your customer...