Ask each service before depositing, if there is no answer try another service or avoid KYCed service.
To reduce the possibility of your coins being restricted as high risk send them to several addresses before depositing. for example:
Your coins --> New wallet address --> New wallet address --> New wallet address --> New wallet address --> exchange service you want to deposit to, with random fees.
Thank you, I will try your method. But how can I verify that the funds will not be withheld by the exchange?