Rent.com.au, page-474

So potentially something like:

- 100k RentPay users round up their monthly rent by $10 (total $1MM)
- RentPay, on their subscribers behalf, take that ~$1MM and buy "bricklets"
- RentPay redistribute the rental income back to subscribers/top up their wallets
- Lease is up, settle outstanding monies, user moves on

Hmm...

Lots of missing parts in the above scenario, not to mention the legalities, but it has potential...not sure how it makes any money for Rent.com though, unless the users still pay the monthly fee even if their wallet is in positive.