Twitter Squatter Password

Hi everyone, I'm new to this community to please excuse any ignorance on my behalf.

Basically I'm a social media marketer just starting out and one of my first clients has a problem. Their company name has been squatted on Twitter and we can not use the name. The person who took the account has no activity whatsoever and if we go through twitters procedure we would have to wait at least 3 weeks to get the account.

I was wondering if anyone can help me retrieve the password of the account or simply just change it?

Thank you!