WMD’s are being deployed for various reasons. One, the City would like to eventually deploy these widely in order to have better control over the water supply system; intelligent metering is a global trend. Two, your meter may have been faulty, or you may have requested a higher quota of water for additional people on your erf. Three, you may have been using more than the monthly limit. In the first two instances, you should get the meter for free. In the last, you will be billed in the region of R4,000.