eBay

can a seller start a bid at .99 cents, but charge $122 approx. for shipping when the item costs around $125 dollars with free shipping?

how do I change from auction to buy it now when I relist it?

I made an offer and he took it. I asked him if he could combine another purchase even before he accepted my offer. He said yes and I told him which item I was wanting and he said to purchase it and he would only charge me one shipping. I could not ge...