There's enough smoke about ChangeNOW that it must be safer for you to avoid it and anything related with the service altogether.
Godex's profile, at least on this forum, is full of red trusts. There's also an existing
flag against them.
SimpleSwap is also distrusted here.
It is interesting how people write about these services here because I exclusively only use ChangeNOW and SimpleSwap and didn't have a single issue to date. What exactly do you think that they are supposed to do if their risk system flags your transaction?
At the very least, they should provide sufficient explanation why the transaction is flagged. You don't just keep the funds of customers without a detailed explanation why you're doing it, or suddenly require personal explanation without saying why. Second, if you think the transaction shouldn't proceed, reject it, but return the funds to the owner. Why do they have to keep the money to themselves?
Moreover, they're saying they're non-custodial. Well, how can it be when users send the funds to their address? They're saying, the address is a temporary address. Well, to a number of users it wasn't. It became a permanent address because their funds are stuck there forever.
Finally, they should resolve issues. That's basic.