It seems I can not buy in User Shops. I tried different Items and different Shops and always get the message:

Purchase failed.

Anyone else with the same problem?

How much money do you have on hand? Is it sufficient sP for whatever it is you're trying to buy?

Edit: to clarify, I'm not having any trouble at all buying from the main shops. Which stores are you trying to buy from?

You probably don't have enough money to Purchase. For me it's fine.

Haha, that's embarrassing. You're right, I was at the bank and I deposit too much. I didn't have enough money on hand headdesk Thank You ♥

Locking as resolved. :)