Called over the phone if i can exchange a snowboar...

Called over the phone if i can exchange a snowboarding jacket that i received as gift 4 months ago. Its still UN used with all the tags on it. Women over the phone confirmed yes, I can.
I went to the store and the cashier said policy is 1 month and wont be able to exchange it or do a store credit. After negotiating, she said she can exchange but there was no right size of the same jackets so i asked for store credit.
Women said can give me store credit based on current discount of 50% while the jacket was bought on 40 % what would be $20 less. But the current discount on the jacket was still showing 40%.
Still a good deal as she went over the store policy for returns and exchanges.
4 Stars as in general, Mount Everest is expensive store comparing with other stores.