I'm afraid you have a huge collar gap.
I think its because the button position is too high for your frame, so its pushing the top part of the collar out. Agreed, there's no way this jacket is going to properly fit you, so before you get it altered, bring it back and exchange it for something else. Did someone in the store help you with this? If so, see if you can get a refund and don't shop in that store again.