I have tried to upgrade to PTE AV Studio 10 pro from 9 Deluxe. I have paid and been sent a key. The key doesn't work message says its damaged or incorrect. I cut and pasted it in from the invoice several times. So I try contact them using their support form That's broken too. It gets to the point where you have to put some sort of validation in but I dont know what to put in. So I go around in circles with a broken Key and no way to contact the Company. What poor service this is. I have started a dispute on Paypal in desperation. I dont know how I can resolve this. There are no phone numbers or anyway to contact them other than a form which doesn't work.