Morning
A bit late in the day but is the commission rate higher than the flat 2% on this i seem to have been charged 4.1%?
Australian Open Commission rate?
Aussie rates are different from the UK. Aussie base rate is 5%.
https://www.betfair.com.au/hub/commissions-and-charges/
https://www.betfair.com.au/hub/commissions-and-charges/