Problem with domain on Twitter


I run a sweepstakes/giveaway platform online and anytime our domain is shared on Twitter, it’s blocked because twitter marks it as unsafe/suspicious. “Oops! A URL in your Tweet appears to link to a page that has spammy or unsafe content.” <- is what message comes up

I have filed a ticket several times. Twitter has not provided ANY feedback. I’ve read through the Terms and Rules and can’t figure out what’s wrong here (even the Contest Guidelines). I checked Google Diagnostic’s report, as Twitter recommends, and the website URL comes up as completely safe with no history of issues ever.

We’re not trying anything fishy or shady on our platform. If anyone can please help shed some light on this, I would really appreciate it. Our team just wants to understand what the issue is so that we can resolve it and continue to do the right thing going forward.

Thanks in advance, means a lot