Poor Service - Water Meter related

A water meter installed for the entire complex. My bill moved from an average of R400 to R4000, Bradley who is a Director at Compeg Real Estate and Property Management finds this normal because "a new" meter is installed. I've requested for examination of this meter and consulted with expects who all confirmed that this is abnormal, given the report by a professional plumber who wrote off leakages following the examination performed on his side. This is a 3 bedroom unit with no pool, no garden and only 2 tenants.