Payment authentication failed

Hello Aravind,

For further assistance in this regard, we request you to contact our designated sales/billing team directly.
You can use this link to contact our sales team via live chat.
Thank you for understanding.

 I had downloaded the trial version a few days ago and after that tried to upgrade it to premium via online. However, whenever I tried to do so,I am not able to complete the payment and in the end, it shows payment authentication failed

Hello Aravind,

For further assistance in this regard, we request you to contact our designated sales/billing team directly.
You can use this link to contact our sales team via live chat.
Thank you for understanding.