DMA spread bet?!

[SanMiguel]

Turns out this company do DMA spread betting?
How do they make their money then as DMA allows you to use limit orders hence no spread and being SB, I'm guessing they don't take commissions?
http://www.prospreads.com/trading-platform.php

 

[Rossini]

yes they do, but all that info is on their site...

 

[Vaco]

also a couple of threads on here, do a search

 

[arabianights]

Also they're not actually direct market...