I’ve never gone through them myself but I have seen other partners.
A lot of it depends on what the complaint is and what proof you have. The more proof you have the more seriously the complaint will be taken. Otherwise it’s typically your word versus theirs and there’s only so much corporate can or will do. Regardless, I always think it’s worth filing because it starts your paper trail if you don’t have one and should ultimately help protect you in case of any future retaliation.
You can either just call them or there is a
$1 you can fill out if you don’t want to call.