First of all- was the CM eventually able to help you?
Ordinarily wait times on the WDW reservation system aren't too bad, but at present there is a perfect storm of problems. Their new website is tanking big time, requiring a lot of people to phone in order to make, change or cancel reservations. AND they just came out with a brand new discount offer for the spring, so have a deluge of calls trying to take advantage and book with that offer. The result has put the phone system on the brink of gridlock. VERY long wait times just to get to a CM.
The time you had to wait is very unusual and is not a typical example of the customer service delivered by the CMs at the call centers. It would have been nice, however if he had checked back with you occasionally to give you a progress report.