Disappointing service

I bought a BMW 320i Steptronic from webuyscars midstream midrand. The car i bought was an A- type meaning the car is a Car with low mileage, warranty and financed through the big banks in South Africa and that the car is still in good condition and worth buying unlike a B-type car that cannot be financed through the banks but a cash sale only so meaning if ever you experience problems with the vehicle they are yours as the owner. So the car i bought from we buy Cars is in-fact an A-type so this car should not give me problems In less than a month with this car in my hands and a clean Dekra report of the car with a green sticker on it. i got the car beginning of July and the car was driving just fine with no faults or anything but suddenly coming back from school which is 1km away from my house just at my gate i parked the car while waiting for the gate to open and the car just lost all water and coolant while the car was standing at the gate. I called my Insurance to assist with a tow truck to take the car BMW Westrand knowing as part of the purchase i was given a warranty policy from INNOVATION group as part of the deal i signed for. so at BMW they did a diagnostic on the car found out the following:

1.The oil filter housing is leaking. 2. The engine oil cooler housing is leaking. 3. The side head connector flange is leaking. 4. The coolant pump housing is leaking.

All this would need replacement and the cost is R24401.44 and INNOVATION say they do not fully cover this components but they only cover up to R9000 for this bill and i have to pay the balance of R15401.44 on a car that is just 1 month in my hands! Mind you the FNI at webuycars gets you to sign for these useless INNOVATION group warranty that does not even send you a full policy document so that you can read the policy to understand exclusions from the policy and from the office of webuycars INNOVATION is well talked about and is made part of the finance agreement when you sign for the car. I have a claim number with INNOVATION Group : 752754 and i also logged a complaint at Webuycars but no one seems to care of the situation because i was told someone will contact me to find out what is the problem and it never happened. If the Dekra report i have in my position for this car is true why would a car leak all this parts and its not shown on the Dekra report? Am i ****med by Webuycars? I have not gotten an answer from webuycars and the person who assisted me with the finance application told me she cannot help me its out of her hands because all paperwork is signed. I genuinely believe i've been hit with a **** but i will retaliate swiftly and whoever thinking they are clever at Webuycars will know who am I Soonest. That car will be dropped at Webuycars and My lawyers will deal with this i dont have time for Nonsense. And i bought this car under my company which will cancel the deal with FNB failing for Webuycars to take full responsibility of this bull****.