Stranded - no way to transport my baby

I took my wife's BMW X5 into JSN motors at 7:30am on 23rd Feb (after waiting 5 days for an appointment) when I got the warning \e-brake failure"(on an 18-month old car). I made it clear that I needed the car the same afternoon as I had a doctor's appointment for my 4-month old baby the next morning. At 2pm"