Having only been supplied by Spark Energy for a period of one month (July 2008), I am still awaiting a final bill and the refund of any overpayment. They have ignored all email correspondence and the last communication from them was after I posted a registered letter back in November. They have had the necessary metering readings forwarded by Scottish Power, but I am still waiting. Their call centre is nothing more than an answering machine. Short of takiing them to a small claims court I am through trying to communicate with this company any more.. read full review »