Multi-step form

There seems to be a problem with the third step. It says to choose at least one add-on, and even though I've selected all three, it still gives me the same alert, and I can't move to the next page. And there are some changes that need to be made when the button has been toggled to yearly on the third step. All values, e.g., +$1/mo need to change to +$10/yr when the button is toggled to year. I hope you find this helpful.