SPOTLESS GLASS DO NOT HONOUR APPOINTMENTS

I HAVE MADE SEVERAL APPOINTMENTS FOR THE WINDOWS OF MY PROPERTY TO BE CLEANED BY THE STAFF OF SPOTLESS GLASS. APPOINTMENTS ARE MADE VIA WHAT'S APP MESSAGES. WHEN THE APPOINTMENT DATE ARRIVES THE STAFF OF SPOTLESS GLASS DO NOT PITCH UP. MY WHAT'APP MESSAGES AS TO WHY THE STAFF HAVE NOT TURNED UP TO CLEAN MY WINDOWS MY MESSAGES ARE IGNORED.