Just starting the withdrawal process today. So far:
1) You need to connect a bank account (not debit card) so that means making an IBAN payment to an Estonian bank account for 6 Euro which they then give you back. That arrived in 1 hour and I received email confirmation.
2) They say it will then take 1 to 2 business days to Verify my account and then 4 -5 days to transfer my withdrawal. Will update this thread when it arrives.