The interest rate for interest on arrears on default of payment is 5%, subject to proof of greater loss by the supplier or slighter loss by Weidmuller.

延迟付款利息为5%，但认为损失大于该罚息的由供应商提供证据证明，认为损失小于该罚息的由魏德米勒提供证据证明。

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"Supplier default" coverage protects you in case the tour operator, cruise line or airline goes bust, though some policies don't include it.

WSJ: Is Travel Insurance Worth the Cost?