This is a dishonest practise having it as a default setting. I feel really angry about this.

I just got stung too. Forgot on one auction to untick the box and they paid by ping and I got a $15 charge on top of the success fees. I then had to try and get the money paid out to me- which I sorted but have to wait up to 2 days. Total rip off- should not be a default setting. Shame on you trade me. I deleted my credit card details so no card is linked to my account now. Really angry about this.