Can't visit friend's towns despite them updating

Can't visit people who have updated either. But they can visit me. Annoying!!!!!!!!!!!!

I just wish they would stop introducing a third currency every time theres a special event. It's a huge pain the *. Just leave all items at cash or donuts! I mean they introduce the scratch cards at the Kwik-E-Mart where you win cash, but 90 % of the new content is purchased through hearts. The cash is pretty much useless especially for people who maxed their level.