EBay: Someone relisted an item I purchased. What to do?

Hi I'm very concerned because I bought 2 items from 2 different sellers. The first item I bought was an iPhone from for £300 I paid via paypal but the seller refunded my payment telling me it was the wrong email address so I promptly sent the payment to his proper paypal email address. Before I paid he would respond almost instantly to my messages but since I've paid (4 days ago) he's completely ignored me. I just thought he was busy but now I've noticed he's relisted the item several times. Now I know it's not uncommon for someone to relist an item but for him to relist an iPhone, which he told me was an upgrade, seems very odd. What should I do?
The second item I paid for cost £165 I paid and again the person refunded my money and asked me to pay into a different paypal account which I did but again as soon as I paid he just completely ignored me and ended all his other listing early for some reason?!
Have I been scammed? What should I do? I seem to notice lots of scams on eBay where obviously fake sellers list items for a really low price but how do they get any money from it isn't the buyer protected by paypal?
Any help will be appreciated

File a dispute right away with Paypal as it's been 4 days
You NEVER pay into another Paypal account. That's a scam. That's considered an offsite transaction which is against Ebay's terms. You MUST pay through Ebay's checkout page or you are not protected

I'm sorry, but I think you have been scammed in both cases and (by paying to another paypal account) you haven't followed the rules for buyer protection.

By all means open a case on ebay if you don't receive the items, but do for goodness sake read the help pages for new buyers (or at least the buyer guidelines) before you bid on anything else.