Our payment partner PayPal has informed us of maintenance happening on Friday April 20th between 05:00 - 06:00 GMT. During the time, PayPal will be unavailable for making payments. Please try an alternative method if you wish to buy Skype Credit or subscriptions during this time. Additionally you will notice a delay in Auto-Recharge payments with Paypal, as those will be handled only after the maintenance.
[UPDATE] Maintenance has been completed at 06:59 GMT.