When I purchased my first domain I paid for a slug of "stuff" I did not need as well. When I called and asked the CS team at GoDaddy they explained it all to me too. And also refunded the unneeded items. I have since bought many more domains from them and although I don't host with them I am very happy with the level of service they provide. It's also great to get the coupons from them when I approach renewal time.
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"People who are unable to motivate themselves must be content with mediocrity." ~Andrew Carnegie~