I am not Roger

I got a new cell phone a few months ago. I got a new number, discarding the old one and with the new number I am also getting calls for....wait for it.....wait for it...Roger.

• "Hello, is Roger there?" --from an unknown number, mind you.
• "no he isn't" a true statement.
• "Can I speak with him?" --how could you speak with him when he isn't here?
• "I don't know a Roger, this is my cell phone number." this is a true statement.
• "Why would Roger give me this number if it isn't his?"

at this point, I just want to tell the person that they have the wrong number and quit calling. There is no Roger, I don't know a Roger - I say a Roger because I don't want the misunderstanding that I know the Roger - and I wish these calls would stop.

SO I am looking for clever ways to let these people know that they have the wrong phone number. It's not my problem, it is the dysfunctional relationship between these people and the man named Roger. What would you tell these people?