Downgrading and disk/BW increases

I’ve had the Code Monster SALE plan for about ten months now, and I’m thinking about downgrading to Crazy Domain Insane.

Do I get to keep the increases to disk space and bandwith allowance I’ve accumulated with the Code Monster plan to date, or would I essentially be starting from zero again if I switched? Currently I have about 3000MB and 180GB extra thanks to the weekly increases.

Any insight would be appreciated!