How do I transfer money to CoinEx?

I'm interested in transferring funds to my CoinEx account, but I'm not sure how to do it. Could you please guide me through the process step-by-step? I'd like to know what payment methods are accepted, whether there are any fees involved, and how long it usually takes for the transfer to complete. Additionally, are there any security measures I should be aware of to ensure a smooth and secure transaction? Your detailed explanation would be greatly appreciated.