Blue security.....lack of service again!

<p>I'm in arrears with my blue security account and want to settle the outstanding amount. I received a statement from Melissa Samuel as the company. I also told her that the agent that fitted the installation told my husband the quite 8ncluded the garage sensor and I wanted to make sure that they fit it since I'm clearing payment.the installer said that he would return the next day to fit the sensor in the garage but told my husband the fee was included.now they say that the sensor was not included and we need to pay an additional amount when they give us a spare quite. I had 2 other contracts at different addresses with blue security and had no major issues.the last email I sent to Melissa Samuel at Blue Security was on 2 December 2016 where I asked her to contact my husband and the installer to sort out.nothings been done yet?I want to PAY you but it seems you don't need my money.....very disappointed at your lack of service!</p>