Diablo 2 Battlenet not responding

Hello there,

Bought the game with a friend today, really looking forward to playing it again after so long. However, Battlenet keeps being unresponsive giving the message “battlenet is not responding, please try again in a few minutes”. Just read some stuff about restrictions, but how can they restrict people if they haven’t been playing this game in so long and how can I see if I’m being restricted? Also, we both payed for this game, we would like to play it so please fix this.

Thanks in advance.