Hello. I have recently renewed my PC and I returned to the bitdefender site to download a copy of bitdefender. The only option available was V10. This is now installed as a trial copy. But I want to key my licence number to validate a full copy. Unfortunately, when I enter the key in the registration wizard, it gives me a message stating'bitdefnder registration failed.'Please can anyone clarify. The help and chat and phone links on the web site dont work.Thank you.