thats the cover for the cable feed - they are usually near the boundary between your property and the pavement and in an area that should be about the same height after the dropped kerb work
but i have no idea of council rules regarding the position of them in a dropped kerb area - are you sure the council know what you are describing - or could it be they think its a manhole cover and pit below it
if the council regulations say the feed duct cannot be in a dropped kerb area then its possible to move it i would think - you need to get more info from the council and confirm that you are both talking about the same thing - if their regs do say it must be moved then you need to come back to VM - it will still need council permission to dig and move it
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Tony