eBay have recently changed their ' blade' policy, to include all bladed items and this does include the Jigsaw item, for buyers to have an age verification on file, which currently eBay accept a credit card to be registered. This shows you are over the age of 18 years.
With no credit card, the only way to buy this item from eBay is to ask someone with credit card registered with eBay, to buy this for you.