[user104658]

We're being chased by "Spark Energy" (****ing dodgy company) who we transferred away from within 6 weeks of moving into our property. After that, we were with Scottish Gas for a year, paying £90 a month and building up a £270 credit on the account on that (a quick bit of maths shows that our actual use is around £70 a month).

We just switched again to another company, got the final bill from Scottish Power (showing the credit) and then a week later, a bill lands on our doorstep from... Spark Energy. Saying that for the 6 week period, mid February to end of March 2014, we owe them £640. Now, on top of this, we had paid around £115 to Spark already for the actual usage for the 6 weeks that we had them.

So what they are trying to tell us is, that in our semi-detached house where we KNOW from actual readings with Scottish Gas that our usage is under £70 a month, we used over £750 worth of gas and electricity in the space of 6 weeks. £125 a WEEK. It's clearly ludicrous, the guy on the phone ummed and ahhed and said it didn't sound right and he would look into it. 2 weeks later we got a letter from a debt collector still looking for the £640.

Someone's getting ripped a new arsehole.