I am also getting the duplicate payment methods after updating to the latest woocommerce using the Bazar theme http://theboxwarehouse.co.uk/. Its still working but it just looks wrong?
The only obvious difference is the terms and conditions tick box wording:
I accept the terms & conditions
I’ve read and accept the terms & conditions
I have the same issue, if there is a fix please help!
I just have a chart on the right hand side of my product; http://theboxwarehouse.co.uk/boxes/removal-boxes-large-moving-boxes
It would be even better if the price could be highlighted as the order quantity increases.