Ileostomy medical supplies

Thinking about signing up thru marketplace with BCBS for 2017.  For 2016, I was with UNITED thru the marketplace and I got royally shafted. My ostomy suplies were not covered even though I called UNITED about 5 times before I signed up to ask if OSTOMY SUPPLIES would be covered since that will be my main recurring medical expense. I have an ileostomy, (large intestine surgically removed on Dec. 1, 1978 because of Crohn's Disease), and I obviously need ostomy supplies all the time. I specifically use the Hollister pouches #8812 in conjunction with CONVATEC wafers #125264. So, before I sign up for another year and get surprised....WILL A BCBS PLAN LIKE A BLUE ADVANTAGE SILVER PLUS HMO 102 OR POSSIBLY THE 107  COVER SOME OR ALL OF THE EXPENSE OF OSTOMY SUPPLIES?  i was using BYRAM as a supplier for 2016 but then discovered than my insurance was not covering my supplies. Surprise, surprise. Can I get an exact, professional answer to this question BEFORE I SIGN UP?

-Steven Macon, in Texas-