Satwa: الى اللقاء (See you later)

Sadly, we’ve joined the exodus from Satwa and, after we moved out, as arranged, the Dubai Electricity and Water Authority (“DEWA”) cut off the water and electricity supply to the Satwa villa on 17th May. DEWA produced the final bill on 20th May. Now DEWA are refusing to refund the original deposit we paid as they're demanding that we pay for water and electricity at the Satwa villa from the date they disconnected the power and water, 17th May, to the date the bill was produced, 20th May. Why? According to DEWA their policy is that the amount to be paid by the consumer is calculated on the date DEWA produces the final bill not the date the service actually ceased. So if, for example, a villa in Satwa is demolished before DEWA produces a final bill for that property, and due to the number of Satwa disconnections it takes them let's say, 6 weeks, to produce a final bill, is the consumer required to pay for water and power (non)supply to the pile of rubble for that 6 week period? I'm sure we'll find out the answer when the demolitions really get under way over the next few months.