A VERY UNHAPPY CLIENT!!!!!!

Blue security was installed on my property almost 3 years ago along with guard cell, which I was charged for at that time, whereby they can open the gate on their own incase of an emergency, they came back almost 3 weeks ago to install the guard cell again & I was charged again for it almost R800, I called them back & I spoke to Emily she did tell me that I will only be charged for the gate battery which was dead apparently & that would be R210.... & I did tell her about the guard cell as well & I did advise her that I will not be paying for this as this is a tough month for me! She said she will get the manager to call me back, I am still waiting for that call & when I checked my account now, my account is on a minus because of this! I want blue security to come & remove their device & i will move to another service provider whom I'm sure I will be much happier with!!!!!! Or they have to refund me the almost R800!!!!! Coz I am not gonna pay for something twice, this company looks for every excuse to make money & increase their fees!