Freshen up the inside lining of your Wax Jacket

I had a great experience having my son's Belstaff jacket rewaxed and refreshed. My second experience of having my son's Barbour rewaxed and refreshed wasn't as good as the first. The Barbour still had a musty smell, and the waxing wasn't a patch on the first time. The refresh on the Belstaff got rid of the musty smell and the Belstaff was waxed so well the jacket looked new. Not too sure why there was such a difference between the two orders?