Msanzi fire and alarm poor service

Hi, I had signed up with Msanzi and it’s been like a 3 months, that the alarm is not sending signal. They sent a technician over and he stated the battery needs to be replaced, I replaced the battery, they tested and said all is in order. We press the alarm and no signal. I am paying for a service which I don’t even have, their technician are *********** because they cannot fix the issue. Really disappointed with this service