United Healthcare excluding wls

My United Healthcare Options PPO lists: charges for, or related to, the treatment of obesity, including surgery for diet or weight control, with the exception of charges for, or related to, the treatment of morbid obesity, when approved by SHPS. We live in Alaska, my husband works for Pepsi under the Pepsi Bottling Group. I am getting the run around from UHC I called twice before and they said WLS would be covered if pre-approved by SHPS. When I called today to ask another question I was told this surgery is excluded and would not be covered. I am so confused! The wording for the exclusion seems to go either way. Any info would be appreciated.