Pathetic Service to clients

My wife took her AMG A class in for a motorplan service Friday ,but was told by Rola that her car must be kept for 2 weeks because of a recall on gearbox and she cannot get her car back .My wife told them that I am out of town and she needs a car ,they said they will provide a courtesy car ,but they never delivered ,my wife had a missed call ,but when tried to call the number it was not a recall number ,no voice message and now 3 days later my wife is still without a car .I find it absolutely unprofessional from Mercedes to tell a client on the day of a service that she cannot get her car back and must be without a car for 2 weeks ,without first making all necessary arrangements for a courtesy car.<br> Unacceptable!!!