THE WORST SERVICE IVE EVER ENCOUNTERED!!!

My BMW wouldn't start and I reported it to BMW ON CALL at least three weeks ago. Since then Ive experienced the worst service you could ever imagine. For the first 7 days the dealer was not able to do anything on the vehicle because between the dealer - Auric Auto, BMW on Call and 911 Towing (outsourced by on Call) - my keys were no where to be found??? After a few days the keys miraculously showed up and the dealer then decided to start work on the vehicle. By this time I was left to make alternative arrangements to get to and from work, because there was no vehicle available for me to use at all. After much frustration I made contact with BMW on Call who then made arrangements for a rented vehicle for 3 days. When the third day came, I called once again and was told that I have nothing to worry about and that an extension would be sorted out for me. Today I get a call saying that I am responsible for payment of the extended days and that my vehicle is still not ready because of a technical problem with the dealers programming machine??? This has really been the most frustrating experience I have yet to encounter. For a company of this magnitude this is ridiculous!