can't say i can crack your riddle LG although i'm having a pretty stressful day in the office so the brain isn't exactly working at full function.

Any luck with calling them Aussie?

yes i rang them sorry for delay.
FWIW and i dont know - they indicated on the phone that they would be more lenient than the other corporates.

Flemington Sportsbet are regulated by RVL. In accordance with their Rules of Racing (including any amendments that come into effect on 1 January 2014) their betting obligations are:

5.1 Metropolitan Race Meetings
5.1.1 Rails Ring
(a) In any one win or each-way Bet: to lose $5,000.
(b) In any one place Bet: to lose $3,000.
(c) Betting on Country Races (including any place Bet) in any
one Bet: to lose $2,000.
(d) Betting on interstate Races (including any place Bet) in any
one Bet: to lose $3,000.
(e) Betting at Metropolitan Race Meetings conducted in a
Provincial Area (including any place Bet) in any one Bet: to
lose $3,000.
(f) Betting on Metropolitan Race Meetings conducted on days
other than weekends or Public Holidays which do not have
a Listed or Group Race on the program (including any
place Bet) in any one Bet: to lose $3,000.
[(d)-(f) added 1/5/13]

5.1.2 Other areas
(a) In any one win or each-way Bet: to lose $1,500.
(b) In any one place Bet: to lose $800.
5.2 Country, non-TAB and Picnic Race Meetings
(a) In any one win or each way Bet at a country race
meeting: to lose $1,500.
(b) In any one place Bet at a country race meeting: to lose
$800.
(c) In any one win or each way Bet at a picnic or non-TAB
race meeting: to lose $1,000.
(d) In any one place Bet at a picnic or non-TAB race
meeting: to lose $500.

Dynabet are a white label of BetEzy and are affiliated with Dynamic Race Odds. Whilst they do restrict winning punters my records indicate that they seem to chase the Betfair market for their fixed odds and should be OK for a bet to lose up to $1,000. Not a bad option for those betting at the smaller end.

From my experience Tabcorp, Tatts and Top Sport are the best of whats currently available in corporates.