BCBSMI- May not aprove revision.

I have the lap band and now I want to go thru with the VSG. BMI is 35.5 barely and I do not have any co-morbids. The lady at the Dr's office said that I would have to have all requirements as if I never had WLS. I called BCBS they said all I need is a letter of necessity.
Has anyone went thru a revision with out the above requirements and just a letter of necessity?

This is what the MI BCBS uses for revision determination

In cases where a revision of the original procedure is planned, documentation of all of the following is required:
o
Date and type of previous procedure.
o
The factors that precipitated failure.
o
Any complications from the previous procedure that mandate (necessitate) the takedown.
o
If the indication for the revision is a failure of the patient to lose a desired amount of weight then the patient must meet all of the initial preoperative criteria.
Previous gastric restrictive procedures that have failed for anatomic or technical reasons (e.g., obstruction, staple dehiscence, etc.) are determined to be medically appropriate for revision without consideration of the initial preoperative criteria.

Thank you very much Vicki!