Extremely bad service

Bought a brand new 2018 BMW X3 insured it through Discovery. They insisted on the tracker unit. Unit was installed. Our BMW instantly had a Drive Train Malfunction. Car would not even turn on! This is a R900 000 Vehicle! No responsibility taken by Discovery. Still waiting on a Claim Number! After a 4 hour wait eventually a load bed to collect. However they could not collect the vehicle. As only then did they realize that this Vehicle was a automatic. Left the vehicle over night in order to get BMW on call to release vehicle. Complete lack of service! We called probably 10 times to get someone to help us out with a loan vehicle from Discovery. Eventually they came through with a vehicle. We were told that based on the insurance taken that we were only allowed 2 days with the loan car. However I think it’s absolutely di*****able from Discovery that this problem was not our Fault as the installation of the tracker unit was insisted by you and installed by you. We were treated as though this was an accident claim! Do Not Insure With Discovery Insure! They have the most worst customer service you will ever experience!