I have a Block Chain wallet and have been reading up on the internet about Bitcoin ATM's to put funds into said wallet. Most of the information that I have read on this talks about scanning a QR code with your mobile phone when you're at the ATM. I believe this has something to do with your wallet ID. Is this possible to do manually without have to use your phone? My cellphone doesn't have a data plan (because I'm cheap), so scanning isn't possible. Or should I just buy coins online with credit card to fund wallet? Can you use prepaid cards for this? I would rather not link a bank account at this time. Thanks.

2Pack