Service department charged me $2800 to replace my ...

Service department charged me $2800 to replace my front and rear brake pads (they cost under $100 total). They also likely lied about there being 3mm or less on the brake pads as in hindsight reading other peoples' experiences, it sounds like those lies are common practice here.

When I told the service man I couldn't afford that price he "magically" dropped $300 off the price. Okay so you were just going to over charge me initially then?

Here's our exact text conversation:
Mechanic- "Ok, with the service and tax we will be looking at $3785.00"
Me- "It said 700-800 when I signed" (I signed paperwork when I brought it in)
Mechanic- "Have to account for the cost of the front and rear brakes and the engine air filters."
Me- "Quick question, air filters cost $10 and brake pads cost $30 each. I'm curious how this totals $3785.00. Something seems not right but we can talk when I pick it up"
Mechanic- "I believe you can find aftermarket parts at those prices, however we do not use anything but factory approved parts and also you have two air filters for the engine and we need to replace pads, rotors and the sensors and hardware as well"

So factory parts cost 30x the price? I don't think so.

He send me a quote but it seemed pretty ludicrously expensive, even when everything was itemized. I'm confident he ripped me off for thousands of dollars. Not bringing my Range Rover back here to get serviced again.