How do I get my money back from BitPay?

I'm curious about the process of retrieving funds from BitPay. Can you walk me through the steps I need to take in order to regain access to my money? Is there a specific timeline I should be aware of? Additionally, are there any fees associated with the process, and if so, how are they calculated? Finally, what happens if I encounter any difficulties during the process? Who can I contact for assistance?