I've been using the masked emails for about a year and was very happy with the service. Later I decided to upgrade to the premium version and test out the masked cards. The first problem is that I signed up for a 1 year subscription, got charged for 3. Then the masked email that I set up for my masked card purchase (first time through the premium set up) never worked, but the credit card charge did. I'm out $132 and until this gets resolved likely to cancel my premium account.