Personally I would have done the SAME thing you did, and I
have in the past 2 weeks done that on 2 different occasions
because what I was being charged was not what was stated
in their "ordering and shipping"policies.
I also changed my mind about ordering SEVERAL items from
Amazon because the item I was ordering was 10 of those
"purple thangs" at a cost $1.65 each and they
wanted to charge $6.28 for shipping on EACH item.