Poor communication

Ji, If I could give a zero rating I would. Last week Thursday morning @ 5h20,house alarm went off,I thought someone must have broke in,but false alarm. Friday morning @4h20 the same thing happened. After they contacted me,I explained what had happened. During load shedding I discovered that the alarm system stays on for less than 1 hour.I explained this to the installation technician that installed it on 20 October 2022,so that battery hasn't even worked for 4 months.I have a surge protector in the DB board of the house,so I am not going to pay a call out fee and am not going to pay for a new battery as it is not my fault. I am very disappointed in this company,I think they must come and remove the alarm system because I can't use it.when the power is off the whole system is off,can't have something that I can not use.