forget about getting your money back. it is your mistake all the way. even if it was 5 minutes after the money exchanged hands, it's yours.

secondly, many/most frames are not perfectly aligned. we need some better pics of the whole bike, the drivetrain, etc to get an idea of what's going on.

right now you have buyer's remorse, but hopefully it's just a few tweaks and everything will be running well. at least the paint looks pretty nice.