From the manufacturer:
Thank you for contacting ReSound. For your initial issue you will have to go back to your Hearing Care Professional at Costco. With the iOS9.2 update, anyone who has not been connected to the fitting software since their update in September needs to get connected for the Triple-Click Menu to function or for the Settings menu to look right. Your Hearing Care Professional just needs to physically hook up your hearing aids to their computer system and save the programming for this to function again.
To get reconnected for streaming to both hearing aids:
1) Make sure your batteries are fresh and you do not have any other compatible Bluetooth devices with Bluetooth turned on within 30 feet.
2) Go to Settings > General > Accessibility > Hearing Aids
3) Tap on Tim’s Hearing Aids
4) Scroll down to Forget This Device, tap it and tap Forget again to confirm
5) Turn your phone completely off and then on again. Hold down the power button until it says “slide to power off” and once the screen is completely off hold the power button down again until you see the Apple symbol
6) Go back to Settings > General > Accessibility > Hearing Aids
7) Open and close your hearing aid battery doors
8) Tap on your name when it comes up in black text (usually you would get a pairing request but with the iOS9.2 issue you do not get this until you are reconnected to the fitting software)