Party, in my experience the outcome of free bets will always be this...

WINNINGS - OUTLAY(free bet) = AMOUNT added to account

This is because you didn't put up the stake(they did) - regardless of whether part of the stake won or lost, you did not put up the stake so you would not expect it to be added to the account - you are only entitled to the profit returned on the bet(after the stake is deducted)

Cheers LG

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The trick isn't finding profitable angles, it's finding ones you will bet through the ups and downs - UB