Its a 'U Terrible Looser Account'

You don't have one?

LG

PS Unitab = now Tattsbet

You must mask your strategy if up, something like martingale favourites until you lose more than you deposited, arb it back on Betfair.
Sure it will cost you, but your account should be safe. So although they're looking at the value bets, they're happy for you to continue because they all have a chuckle over morning tea about what a loser you are ;)
Donuts are on me :D

Tattsbet account safe but in the red, why bother? Just do your thing on Betfair!?

Not Tattsbet, bookie account.
Back at bookie and lose, money is layed on Betfair, easy transfer of winnings and bookie thinks you lost, so is happy to keep taking wagers from you.