Get your consultant to write to your doctors, showing the meter and strips that he/she has prescribed you. The doctors should follow the consultants suggestions.
A while back my docs changed me to some cheap strips, but when I went to the carb counting course last year where they gave me a new meter and a letter to give to the docs about needing strips for it, and since then I've had the strips for the better meter from my docs (my docs did also put a note on the prescription list saying 'For carb counting' so I guess that will remind them not to get rid of them). So they should take note of a letter from your consultant in the same way, if they don't let the consultant know.