My payout function was restricted is it legal ?

[ernest7119 10]

I am overseas seller, and can get payout once a week on every Tuesdays, my recent two payouts have restricted by the customer support, is this legal action, it like robbery, I need to prepay all charges on recent transaction. I hope you can help to solve this.

[Allstar 24]

Bidorbuy is now restricting all payouts for higher value orders till they are confirmed delivered.

Apparently they are getting inundated with Buyers protection claims and this is their response