i had a few probs myself ,mine is a vivaro with 650 litre tank ,in the end autonet insured me and sed tank was covered at no xtra cost ,however i also think they are cheating weasels so i asked for a letter sayin specifically i was covered for said tank ,good enough i got a seperate letter with my certificate confirming this ...mind you if worse comes to worse the cheating stinkin weasels will still find a way to not pay out