Reeder P13 Sound and Battery Glitches

I've been having some trouble with my Reeder P13 phone lately. It keeps shutting down unexpectedly when the battery level drops to around 40%. Additionally, there seems to be an issue with the sound. It's quite frustrating to deal with these problems on a daily basis. Encountering these issues within the initial year, I decided to send the device to the service center. Surprisingly, the service center insisted on charging a fee for what they claimed was a broken screen, even though the damage was minimal and confined to a small area. It is completely unacceptable to be treated in such a manner by a local company. I'm thinking about submitting a complaint to the Consumer Arbitration Board.