Fidelity Service Group - Security bullies

It was December 2022 when I received a call from ADT, claiming that my alarm battery was faulty. They insisted on coming to my place to fix it, promising to offset the cost against something I can't quite recall. In other words, they assured me that I wouldn't have to pay for the service. They mentioned that their technical department would get in touch to schedule a date. However, I informed them about the unfortunate lightning strike that had damaged a few things in my house. I thought it would be best to wait until our insurance had taken care of the repairs before addressing the alarm issue. Despite this, ADT continued to call me throughout December, urging me to contact the technical department once everything was sorted out. Fast forward to February 2023, I followed their advice and called the technical department. They promptly arrived and replaced the faulty battery. But to my surprise, I received an invoice for a call-out fee. I immediately reached out to ADT, questioning this unexpected charge. I reminded them that they had initiated the service, not me. They assured me that they would investigate the matter, but to this day, I have yet to receive any feedback. Instead, I received a rather absurd letter of demand. What a load of nonsense! In addition to this, I raised another concern with ADT. What's the point of having an alarm system if I'm going to be billed every time it goes off more than 12 times? Surely, this indicates a problem with their system, particularly when there hasn't been a break-in. I pleaded with them to thoroughly investigate this issue, listen to the recorded calls, and provide me with the appropriate feedback before rushing into legal action. It's disheartening to see how ADT, the supposed protectors, are behaving more like bullies. They need to take responsibility for their actions and address these concerns promptly.