Claiming Inactive Instagram Account With Trademark

Hello everyone. I just launched a business few months ago and I have trademarked my business name and logo. I want to claim username on social accounts. I want to claim my username on Facebook, Twitter and Instagram.

1) Facebook account with that username is inactive since 6 months.

2) Twitter account is inactive since 2011. Non followers, no tweets.

3) Instagram account is inactive since 1 and half year.

I tried to contact account owners but they are not active on those platforms…

Claiming Inactive Instagram Account With Trademark