You can’t switch subscriptions or change your subscription to Skype Credit. However, you can cancel your subscription at any time and buy as many new subscriptions as you like.
If you have more than one subscription, Skype uses them in the following order:
- By subscription type – unlimited subscriptions are used first, then limited ones.
- By expiry date – subscriptions with the nearest expiry date are used first.
Note: When you upgrade to a new subscription, the previous one will be cancelled and replaced with the new one once you've used all the minutes or the expiration date has passed.