I have had my band for 2 years which was self pay and am needing a revision to a sleeve and now I have Aetna. I had my sleep study last week with no sleep apnea and my endoscopy last week with Dr. Kim, he said I have a slipped band which has been empty for weeks. His office submitted everything to the insurance today and said we will have to wait to hear from them. Has anybody else gone throught these steps with insurance, how long does it usually take to get an approval or denial?