BMW not pointing out reduced motor plan

I have been driving BMW vehicles for over 30 years. I bought an X3 3.0 in June 19 at Northcliff Auto. The X3 had 2508 kms on the Odo and it was sold as a "Demo" vehicle - Not second-hand. I discovered after I received an email today that my motor plan expires next month which is 10 months less than 5 years. I was never made aware when I bought the BWM that I will lose 10 months due to the vehicle having 2508 kms on it and it was registered in Sep 2018. I am sure ALL of these are in the fine print and per BMW policy that I have signed BUT I would have looked at the whole deal differently if I was made aware of this. I was NOT. I bought the vehicle over 72 months and till have to pay 20 months. I have 80000km on the clock and now have to pay R23000 for an extra 12 months to drive 5000 km per year. Will never buy from BMW again. I feel cheated