hi dobber , i would think it is illegal not to declare the true value, the bloke i used to buy off never put the true amount , but there where never any big value items so i was prepared to take that risk , it is down to chance imo , got stung with the charges 5 times but must admit they have all been in the last 18 months 2 years , i always ask the seller if he will put lower value on the ticket , most have so far, hope this helps , john