The Financial Times reports Apple had illegally ordered retailers in Russia to fix the price of the iPhone, which began with the iPhone 5 and continued until the iPhone 6s. Apparently, if a retailer tried discounting Apple’s devices, the Cupertino company would order them to change the price. If a retailer didn’t comply, Apple would threaten to terminate their sales agreement.

For its part, Apple has apparently cooperated in full with Russian authorities, and has changed its price fixing practices for future releases. The FAS didn’t note any discrepancies related to the iPhone 7, which was released late last year.

It’s unclear what the punishment will be

The Financial Times notes Apple could be facing a fine of up to 15 percent of its Russian sales. Apple has three months to appeal the ruling, though it’s unclear if the company intends on doing so.