PVZ2: can’t spend mints anymore?

I’m wondering the same. I’m m level on all special booster plants I have over 13k mints and there’s nothing I can do with them ;( 

I just thought of this, but maybe they could let you convert mints into gems or coins. Not 1=1 obviously. But something to keep them useful. Maybe 100 mints equal 10 gems or 10,000 coins or something. It's a bad conversion but if you already have so many mints that you can't spend them, It's better than nothing.

Same here. 13k of mints and nothing to spend them on. Pointless.

It's a bug that occurs sometimes for various players when the season changes. If you're unlucky, you can go months or even years without being able to buy mint seeds. I had the bug several seasons ago, then it worked fine a few more seasons, and now it's bugged again with this new season. Normally there should be two options in the Adventure tab in the Store, one for buying 25 power mint seeds in exchange for 25 mint candies, and one for buying 100 power mint seeds in exchange for 100 mint candies.

Apparently power mints are not available all year round. For instance, in this Tournament of Champions there are none available. In the next tournament which starts in 3 weeks there should be a power mint available to spend the mints on.

I was wondering why that had changed myself. Hopefully they will add it back.