Bad services

Ive joined atlas about a month ago. Sales lady was very happy selling me they're product and assured me I will be much happier with them than my old security company as I had problems with false alarms and it doesn't get fixed. So alarm technician comes out connects there device checks everything and gives his approval.he used my old system and just linked them up as my new security company. First evening of atlas false alarm they come out said it was connection problem ok.So same night same problem they change a sensor of a cost of R580. Ok after that a nother sensor and a nother R580. Then alarm goes of again and they just want to change sensors but the new ones they fitted is still giving false alarms.The technitian was at my shop about 6 time in one month and problem is still not fixed they call me about 3 to 4 times a day between the hours of 21:00 to 6:00 in the morning I can sleep I spent over a R1000 we are in lockdown now and problem is still not solved I don't know what to do its seems to me they just want you to spend money and worry about your building every night. I've got a motor vehicle repair shop and if a customer must come back 6 times and if car is not fixed he will certainly not be my customer any more and will not pay for my services. I meen you hire a security for the reason to look after your prorety so you can sleep assured and be rested the next day to be productive