buymerchant.com rude and unprofessional. scammers ny

 I ordered a hat from this company today. This evening I got a call from them. To start, when I answered the guy just said hi and did not identifyhimself. I asked who he was and he told me. He then stated that he wanted to hand deliver the hat and I would pay cash and they would cancel my paypal payment. I informed him I did not want to do that and that I was confused. He said " its not that complicated. Its easier for us to just deliver it and get cash. Thats why we say free shipping". When I told him I want it mailed he said ill have to speak to my manager and see if we can still sell this to you and hung up. I am so confused. What kind of business is this ? I have a strong feeling they are scammers. Beware