To buy Skype Credit, simply log in to your Skype account from your internet browser, click Buy Credit (or Add Skype Credit if you’ve bought Skype Credit before) and follow the instructions to complete your purchase.
If you’re already signed in to Skype, you can buy Skype Credit directly from the app:
If you already have Skype Credit, your credit balance is displayed instead of the Add Credit link.
If you have no Skype Credit and you’re trying to send an SMS text message or make a call to a mobile or landline, you’ll be asked to add some to your account.
If you’ve purchased Skype Credit with Visa, MasterCard or PayPal before, a pop-up window opens. Simply click the Add Credit button. If you haven’t purchased Skype Credit using one of these payment methods, click the get Skype Credit link in the conversation window.