Creating a "manager" for my Telus account

If I am away from home when one of my Telus services (internet, land line etc.) goes down my wife cannot authorize repair services because she is not the account owner.  The website speaks of an account "manager" as someone authorized to manage the account but I can find no reference to how a manager is appointed or whether they would have the required authority to call up the repairs.  Anyone had any experience with this issue?