In response to the many consumers who have complained of automatic phone shut-offs, Apple has offered to replace the batteries of faulty phones free of charge. However, this compensation has left some consumers unhappy, triggering a new batch of complaints. Apple confirmed the automatic shut-off issue on iPhone 6S units, but the company denies that it is a security issue.

Nevertheless, the problem has drawn the attention of the China Consumers’ Association and the Shanghai Consumers Council. The two bodies announced on Nov. 17 that Apple promised to replace batteries in broken devices. Apple then officially denied the battery replacement policy, and some iPhone users were told they couldn’t get their device repaired.

Later, Apple admitted that the problem was only present in iPhone 6S devices that were produced during September and October 2015. Users of these devices are entitled to free battery replacements. However, users of other iPhones are not eligible for the complimentary service.

Many iPhone users have expressed their dissatisfaction with Apple’s response - both failing to disclose the cause of the problem and also neglecting to extend Applecare insurance on affected phones. Moreover, many iPhone users whose phones were produced outside the designated window now worry about the fate of their devices.