shipping insurance, listed as optional

Apr 2, 2008
214
0
i'm new to selling on ebay but not at buying, lol. after hearing the problems in this forum regarding shipping and stuff, can i send invoices out to my buyers with the shipping as required? i listed it in my auction as optional (not going to do that anymore, gotta require it). basically, the question is: can i later require buyers to pay for shipping insurance even though i listed it as optional in my listing?
 
the auction already ended so i couldnt revise my listing. i tried with my other ones but the ones that were ending soon couldnt be revised either. just the ones that didnt have any bids on them. im just planning on paying for insurance myself.