WD SmartWare Pro Standard License

I have purchased this item today because I ran out of trial version. Few minutes later, received the activation code but each time I try to activate my licence, it gives the error below.

There was an error trying to validate your activation code. Please try again later.

Also I was not able to find a link where I can download the pro version.

Thank you all in advance.

This is normal, keep trying, it will eventually work. Once it does activate that will unlock your current SmartWare and become SmartWare Pro.