I replied to the thread " Select Shipping SAVE not working" but have not received any reply in a couple of days so I decided to start a new thread. I too am having the same issue. When I choose a UPS shipping method, it saves with the last method on the list rather than the one I choose. I was using VM 3.0.2 when this first showed up and it is a brand new install of both VM and J3.3.6. Last night I went ahead and upgraded to VM 3.0.4 and still have the problem. If I switch to a different template that does not have VM CleanMart installed, everything works as expected. This leads me to believe it is definitely an issue with your VM template.
Before forking out the $138 (most I have ever paid for a template!) on this template, I read about how quick you provide support. I was a little disappointed that my reply to the other thread has been ignored for a couple of days so I thought maybe creating a new thread/support request would help me get some action. I hope you can help with this issue asap. Thank you!