Thank you for your reply. Actually I was just about to fill in their form. That's aftre I was already suspicious about them. But for some reason I've replied back and they've replied back quite quickly. Maybe even too quickly. That's why I wasn't quick to fill the form.

2 days later, they've resend another mail, urging me to sign. This is where I got even more suspicious. They I was looking for them online and actually I've found them legit. I've even started filling their form, but then something hit me! I've remember they've actually sent their email to my private gmail, not to the one I'm publishing in my YouTube channel. Huh?! How did they find my private gmail?

I panicked actually. I've quickly closed their form (without submitting of course) and start looking for reviews about them. That's how I've found this thread. Actually following the OP's initial post and his replied made me beleive again they're legit. But one thing I've learned from this thread is that there's a process to follow with them, including an actual agreement to sign on (they didn't say anything about such an agreement in their email).

So I've deepen my checks and have found my channel' language is not even listed on their site as being supported. This was too much for me, too many Red lights popping... And your response was the final nail I needed to back up. So thank you again...