Very annoying

Here is another example of the troubles I am going throgh every day. Below is an email sent to me:

hey i wan't to get this bot to test it out but how can i check that this is no scam, how can u guys proove that when i will give u my master card u will charge $200 or more???
please write back as soon as possible, and is there a tutorial for this bot

thanks a lot
hope u will answer my quest

And my response:

Please read the website and my forum first!!
this is a donate, you don't need to pay to play
and it is paypal (do you even know paypal?), how can I charge you $200?
And there is an open forum, you can post anything wow related on it, if I am a scamer all others will post crap about me on it.

Please do your homework before ask the questions.