Two connected people imposing interest on FB Market Place adds

Do these 2 so called buyers on Facebook Market Place look familiar to anyone? I have been weeling & dealing on FB Marketplace for some time now and these two look very suspicious to me. Especially when i had a conversation with both of them. One person started imposing that they are interested in a advertisment I placed, and then not long after that a second person from so called Kruger Africa starts talking to you about the same advertisement. And he also admits or states that he knows the other person that spoke to me. Why didn't the initial person stay in contact with me? Why involve a second party? The initial guy immediately wanted to pay the money into my account, asking for all my personal idetails and said that courier guy will collect the item from my house. Up untill now, no payment has been made into my account, and neither has any courier guys arrived at my house. So just be careful guys. I'm 100% convinced that they are scammers