Able to purchase RP with wrong CVV number

In the last couple days i have purchased RP using my credit card on the client store. I noticed the CVV text box would show up, But if i clicked where it should be it would allow me to type. I typed in my CVV code for my old credit card not thinking (same card number just different CVV and expiration date) and it let me purchase my RP. I then looked at my card to pay a few bills and noticed the CVV has changed. So i was confused on why it let me buy RP with the wrong CVV. so then looked at my bank statements said i was charged for the RP. Then i decided to test it out on my own and see if i just typed it right not thinking. But no even after i typed in the wrong CVV it let me still buy the points. I have been charged for the points but I think that is something you guys may want to look into because it may create a problem in the long term for some people.

CVV text box MIA (http://imgur.com/jkNezrK)