Thanks for the replies, Phil yes i was aware of the 4 month billing period.
we have a penthouse in block 14, Lizzie we cannot be on your home as we have never used the apartment enough to get any where near 300 euros and we also have a 3 bed in jardin 2.
with regards to the 3 bed i am 99% certain we are on the correct meter and with the power off at the breakers the meter still goes up if what slowy, i was wondering wether the communal lights in the front of the home are connected to our meters?
with regards to the penthouse i do not know which is our meter as other owners would know thay are in the locked cabinets.
as other owners have experienced trying to deal with iberdrola is a time consuming nightmare.
mike