Sold me broken car

I bought a 2003 land rover freelander td4 automatic from them just before lockdown In the test drive everything seemed fine a couple of small faults Got home the car doesn't go forward or in reverse when it rains the car leaks The water pours out of the engine and half of the electronics and bolts on the engine is loose

I recieve no feedback from anyone or no one has contacted me The salesman also never said anything was major wrong only engine light came on and there is a knock when you go over bumbs I will never do business with then again and will be taking this further