Bulk prices won’t happen, sorry.
The 30 item buy limit is a Steam limitation, which the website won’t have.
Refunding items for full refund would make unlocking items mean basically nothing as you could just keep switching between your decisions.
The unlocking of items is core to Tower Unite. At the moment, it may feel like you’re grinding the same things, but that’s because there’s a lack of things to play right now. The more Game Worlds and Plaza activities (such as the ones we already have planned and are working on) - the less grinding it will feel like.
Pricing the items on the website at an increase gives more of a reason for people to go into the Plaza to buy the items. The increase won’t be an insane amount, but enough.