Don't ever "release" your retainer thinking your simply "dismissing" it. Those two words need to be addressed in the future in my opinion. Especially for those who are tired and misread them.
Your 80/80 inventory and your Gil you stored will be gone forever. Plus there is no support from Square-Enix right now. So if you happen to lose thousands of Gil and all your ore, yarn, crystals then welcome to my club.