I have done payment o 21-12-2016 and got the activation link for activating account also. but it got an issue and still they are not responding regarding that, after Christmas holiday also its above 4 days and they have not activated yet.
How much time it takes to activate the account after payment is done?
Can take two weeks on avg. if you're outside the US. Otherwise, a few days, normally.
Call 'em up if you think there is a specific issue, but I think any slowdown now is from the holidays.
Numbers here.