Worse company

My windscreen was replaced with a windscreens that couldn't stick a car disk, VIN is hidden, was told that cars that are out of warranty, my car hasn't even clicked 60 000, was told to submit the kilos then the language changed to Range Rovers etc only get original parts, so can their business run smoothly with only those big five and why are we not told that when signing up with them, so if you are not driving a big five you are not entitled to proper service and genuine parts, but the premiums are worth to be collected every month, can imagine if you are involved in an accident, what excuses will you receive if a windscreen thats not even R5000 is problematic then what if you collide with another car doubt they will cover, only excuses that you will receive.