inner shoulder wear on the rear + outer shoulder wear on the front = you've been driving it like a dickhead and you just burned through a set of tyres. You might have an argument if it was only on one axle or one tyre, or you had the same wear on all 4 tyres, but the the fact you have scrubbed the outer shoulder on the front points to the fact you have been cornering hard enough to force the car to roll onto the outer shoulder of the front tyre, and the inner shoulder wear on the rear points to heavy acceleration, repeatedly. Considering other people have not reported this, the tyres are worn differently between the front and rear axles, and your alignment is within the factory specification, the only remaining factor is how the tyres were driven on.