Wait, didn't the FTC say Qualcomm provided rebates on patent royalties to Apple in return for exclusivity? Now it is suddenly overpriced patent royalties?
Rebates come after you've paid - that's the difference between a rebate ("give me £10 now and I'll give you £5 back later") and a discount ("normally I'd ask for £10 but I'm giving you half off, so give me a fiver.") In this case, Apple is alleging that Qualcomm said "use us exclusively for your baseband chips and licence all of these allegedly-bullhoey patents for completely unrelated technologies like TouchID at MASSIVELY INFLATED PRICES and we'll give you a chunk of your money back later." Apple then said "okay, I guess," but started shopping around and/or questioning the validity of said allegedly-bullhoey patents, at which point Qualcomm said "WE SAID EXCLUSIVE, we're keeping that £800 million in rebates we owe you as a punishment." Then Apple got the FTC involved.
Hey, remember that time Apple basically killed IEEE 1394 by demanding huge patent royalties and scaring everyone away? Payback's a bitch. Sorry, Apple. You guys A. didn't invent fingerprint scanners or high-res screens either,regardless of your claims here, and B. are no strangers to patent trolling yourselves. Zero sympathy, and stop letting your marketing team write your legal filings.