They will probably offer you two prices, one quote in credit one quote in cash. You're not going to get online market value for every card because they have to resell them and make it profitable/worthwhile on their end. People who feel lowballed end up selling their singles online like Amazon, eBay, or tcgplayer. It'll take you longer to list sell and ship so that quote that may seem low at first is actually better if you're not a professional card reseller. Speaking from experience.
Not sure . You would have to call them. Or got to a store that specializes in cards.
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