Older versions of iPhone OS aren't new enough to have modern certificate authorities trusted, meaning only sites using older certificate authorities are able to have a secure connection.

Here are links to modern Certificate Authorities that may not be trusted on older devices (some other complications may prevent sites using these certificates from working, those can not be fixed by these.)

Can I Buy Ebay Gift Cards On Amazon -

You cannot use an Amazon gift card balance to buy other third-party gift cards.

If you find a listing for an eBay gift card on Amazon from a third-party seller, be extremely cautious. Even if you could find one: can i buy ebay gift cards on amazon

If you need an eBay gift card, you should use official or authorized channels to avoid scams: Specialty Gift Cards - Amazon Customer Service You cannot use an Amazon gift card balance

Amazon explicitly prohibits using your gift card balance to purchase "certain third-party gift cards" to prevent fraud and money laundering. ✅ Where to Buy eBay Gift Cards Instead can i buy ebay gift cards on amazon