PSA: Read Riot's Terms of Use before you buy RP
Every time a new patch comes out two pop-ups will open when you click the "Play" button for the first time. They are the EULA and the Terms of Use. Please read these before purchasing RP, especially the Terms of Use. The Terms of Use is relatively short and clearly lay out what behavior your account can be suspended or banned for. The Terms of Use also clearly define that everything in League of Legends, including your account and all purchased content, is Riot's property and that if your account is banned you will have no right to a refund.
Do not purchase hundreds or thousands of dollars on RP and then come whining to these boards that you got banned for something that Riot clearly says you will get banned for. You click "I agree" to the Terms of Use every time a new patch comes out, do yourself a favor and make sure you actually agree with the Terms of Use before you blindly click "I Agree."
Its your money after all. You wouldn't sign up for a credit card or a car loan or a new cell phone plan without reading the contract so why would you purchase RP without first reading the Terms of Use?