Is this the reference they are using?
A2.3. Communications and Information Systems Officer (CSO) Responsibilities.
A2.3.26. Has the installation commander established local policy for handling incoming official collect calls?
2 prong attack
1. Elevate your concern to your flight leadership, if you have a letter (no matter how old) if it hasn't been rescinded by subsequent WG CC, it's still valid. Check w/ the WG CC secretary of the admin staff to see if there is an updated letter.
2. Take the old letter, brush off the dust and start it on its long journey for signature, document the letter in your records. You made the effort to correct the discrepancy before the inspection. The leadership through to the wing king, will decide if a policy letter needs to be updated or written.
It's the installation commander's policy, not your shop's.