I signed on with this company 2 years ago 6/07, which was then called Firstline. I immediately had billing issues with them. Fortunately they called me and told me that they had forgotten to bill my visa acct for 3 months and needed to arrange for payment, about the same time, I think, they changed name to SAI. I rec'd a phone call on 6/29/09 from a collection agency stating that they were representing CastleRock Security for non-payment. I thought this was a hoax call since I had never heard of CastleRock (another new name for... read full review »