Switched to Energia a couple of years ago - paid monthly tariff of €78 .. then it went up to €101 and then up to €159 per month. I've never missed a payment. Then earlier this year, out of blue they tell me my electricity bill is €1,200. They apologised that they didn't do a proper meter reading in sometime and have a 'catch up bill'. Now I'm left with a debt of €1,200!