I just purchased a Square Reader. I've installed the app and set up my account. Now when I try to charge, it doesn't allow me to. When I try to swipe, I either don't get anything to happen or after a few seconds, it brings up "Card Not Charged, Please Try Again. It even continues to tell me a few minutes later the same error if I don't do anything to complete the sale. I have gone through all the troubleshooting, taking off my case, re-installing, etc. Nothing works. Is it because my cards are chip cards? Please assist. 

Please do not tell me to do what Sean's suggestions are as I've already tried them.  Please do not tell me to go back through the previous reader's inquiries, as I've already done that.  Neither of those responses is a help to my question.  I have already sent Support a message, so please do not tell me to do that either.  I'd appreciate actual help that is not directly stated here already.