Overpaying electricity + gas
looking for some advice. Have been renting a place in tervuren for 5 years and I am paying too much on elec/gas - around 235 a month. There is no one in the house during the day and apart from a couple of computers (one with no sleep) and a tv and fridge (normal stuff). 3 floors, old house but not that big. Oh and it's above a shop.
I have called Luminus and they said to contact my provider - Iverlek - and ask them to come by to see if there is a problem but Iverlek said it would cost 500 euros if nothing was found.
Is this something an electrician could do? Check the elect/gas and my bills to see what is wrong? Iverlek didn't sound like they really wanted to help.
If yes to above, could anyone please recommend someone to check all this?