ClassicEtherWallet is not a "web wallet". You do not create an account or give us your ETC to hold onto. All data is created on our computer/your browser, not our servers. It's not a website where you put your ETC and we store them for you. We just make it easy for you to save your wallet information in your browser/on your computer. Then we give you a place you to access that information and do stuff with it.
Please, do not forget to save your private key & password when you create a new wallet. Back them up in multiple phsyical locations – not just on your computer!
Please make sure you are sending to the correct address.
Please reach out to us with any and all feedback you have, especially with things that confuse you or error messages that don't make sense.