This step turned CB into a big SCAM !!!
- normal legal documents are being not accepted in KYC
- CB did not inform users in advance that KYC is going to be applied
- this "DEX" exchange keeps users away from their accounts
- it is amateurism to entrust KYC to an external company that was only recently established (around 1+ year of existence)
here you can see details about this KYC company (registered under 198469 B)
https://www.online-handelsregister.de/handelsregisterauszug/be/Charlottenburg-Berlin/F/Fractal+Launchpad+GmbH/4238196
- this Trust Fractal GmbH company probably does not know what is enough for KYC, they want more than regular european banks from clients
- and possible issue within this all, do you really want to send your personal details, documents, ...  to this suspicious company? There is a high risk of misuse of your data in the future.
- nobody from CB answers questions, nobody from CB gives here any information in advance, nobody from CB help people to go through this strong KYC procedure

the only thing I can think of is that CB wants to keep as many users as possible from their coins and wants to rob them in very early time. We saw this scenario several times in the past although KYC was not used as an occasion the result was the same ... robbed users. This is not really the way how true DEX exchange should go if they are not scam.