If you're trying to unlink your Skype account from your Microsoft account on Windows 10 Mobile, you might receive a message that says you have Skype Credits.
To unlink your Skype account from your Microsoft account, please contact Microsoft Customer Service and provide the following details:
Do not send us the passwords to any of your accounts. Customer Service representatives will never ask you to provide such information. Always make sure to keep your passwords secure and private.
When we have the above details, as long as you haven’t exceeded the maximum number of unlink requests, we can unlink your accounts for you.
Article ID: 10621 - Last Review: 31/08/2016 - Revision: 11