Webull Signup Requires Excessive Personal Info

I recently tried to sign up for Webull to take advantage of their latest bonus promotion. However, I became concerned about the security of my personal information when they requested a significant amount of data during the account opening process. Honestly, even banks don't ask for this much personal information. They wanted my social security number, ID photo, selfie, and much more. I stopped the process midway and decided not to become a member. However, I'm worried because they already have a lot of my personal information. I haven't been able to reach customer service, and my emails haven't been answered. I want to be sure that all the personal information I entered on their website is deleted from their databases. My only consolation is that I didn't share all of my personal details.