简单英语对话：购物 Bad Business

A: I got ripped¹ off.
B: What happened?
A: I had a car problem, so I went online.
B: Did you find a solution?
A: Yes, I did. A site I went to said they would send me the solution.
B: So, what’s the problem?
A: I sent them $20 using my credit² card, but they never sent me the solution.
B: What are you going to do?
A: I sent them an email asking for my money back.
B: Have you heard from them?
A: Not yet. It’s been a week.
B: Well, I guess that’s a $20 lesson for you.