Did I just get scammed?

[rssk]

Hey guys, I bought a bot here few hours back. Everything went well, we talked through telegram. I went back to see chat history to see some stuff so I can setup the bot but I couldn't see any messages, I didn't delete anything.
I checked from web.telegram and it says "History was cleared" but I didn't clear anything. I'm not familiar with telegram but can the other person delete my telegram messages??? and now this guy is not responding anymore.....