I have been a resident in AIMCO owned apartment complex for several years. The company that bills my water and sewage usage is named ISTA. ISTA has a meter and transmitter in each apartment so ISTA has the actual reading on a daily basis. But instead of using the meter reading that is transmitted to their office ISTA started estimating my apt. usage. The problem is ISTA's estimate is double and triple my actual usage. So I am charged two and three times more money that I should be paying. I have called ISTA and complained and I... read full review »