Sucks for you.
This was a lesson that many learned when Ledger had their marketing database leaked in 2020. Not only should you be concerned about “risks to your money,” but also “risks to your data.” Personal data is extremely valuable, and the reward for giving up personal data is often not worth the risk. In the case of Celsuis, not only was your bitcoin on the chopping block, but so too was all that data they got from you when completing the KYC process.
Quick example: financial institutions offering a “$300 bonus” to sign up with them and open a checking account. You think, “sure, I only have to transfer $1,000 over, and it only has to sit there for 60 days. What’s the harm?” Especially when it works out, and you withdraw your $1,300 to your main bank, you’re like “well I guess I’m all good.” Then you find out a year or two later that the bank was hacked and your address and SSN have been compromised. You may sit there and think, “was the $300 really worth me having important data leaked?”
Consider that, being a Bitcoiner, you know that no KYC data is needed in order to utilize the Bitcoin open monetary network. So, giving out any information more than that is unnecessary, and potentially harmful.
Be careful out there.