As someone who has previously worked in the wireless industry for nearly a decade this is unsurprising. I worked for one of the Big 3 at a third party retailer and saw all kinds of shady things. From aggressive sales tactics to hostile management and straight up fraud. I was constantly getting in trouble with upper management because I refused to "live in the shade," a term they used for committing knowingly unethical acts. The only reason I didn't get fired (despite numerous threats) was because my sales numbers were always up to par. Turns out treating people with respect and keeping to your ethics was an equally effective way of hitting consistent numbers.