Good luck! I had this same issue, I created my account, verified with success, then BAM suspended due to violation of the Microsoft Advertising Egregious Policy.
I sent countless emails, and had many phone calls, finally, they admitted they were wrong and reversed the suspension, BUT THEN, they suspended it again!
And now they wont reply to my emails, or return my calls, and when I do get to speak to someone, they just say they cannot help, and wont transfer me to any manager who can help. They just say, Sorry, nothing you can do..
I am a reputable business, successfully advertising with Google and META for more than a year.
They just don't want to help, customer service is appalling, and seems to be no one being held accountable for running the Microsoft Ads business, seems to be just ran by an offshore call centre.