Hi Gavin,
Last night I tried to place a lay bet of £30 on the ladder (the set default stake) and somehow ended up with £120 placed, which appears to be 4 bets !
I'm sure I only clicked once. I don't know if I accidently dragged the mouse pointer across the ladder; I tried recreating the error to smaller stakes by dragging the mouse pointer around but to no avail.
Kind regards,
Derek