My wife has a breathing problem so she wore a mask...

My wife has a breathing problem so she wore a mask, keeping her nose open. A lady representative told her that she has to cover nose and mouth. My wife told her lady at door did not say anything to her when we came into business. The lady left her post a snooty lady with grey piled up layered hair told my wife she has to pull mask covering nose. My wife told her of her condition, lady was indignant and indifferent saying it's their policy. They lost 2 customers today