I have forgotten microsoft bing password

Sorry,My english is bad
I opened the hotmail account 4 days ago for bing ads but i have forgotten my hotmail password.Unfortunately I also couldn't reset it.I wrote fake email and mobile number for recovery.
I added debit card as prepay or postpay.I'm not sure which one I use prepay or postpay.
I have used $100 bing coupon and my ads work.I couldn't see coupon balance.
My problem is :
when coupon($100) is finished , bing will withdrawn money from my debit card ? " If I have added my debit card as postpay "
I'm worried...
what should I do? Does any withdrawal when coupon value end?
I hope you can understand me...Thanks

Yes they will charge your card after you use the coupon balance.

if you used your own CC, call your credit card company and disable your CC.