Hi Ruth
I'm sorry we haven't sorted this matter out more quickly and for not calling when promised.
There isn't a great deal I can add to the advice already posted apart from to re-iterate the importance of following our complaints procedure.
Your complaint certainly should not have been closed on 11 December and our agent was right to re-open it. Also, as Jalexa says, the complaint should definitely be back dated to the time you first expressed dissatisfaction. From your post, this would seem to be round about 5 November 2010.
We have 56 days to try and resolve complaints. After this, you are free to approach the Ombudsman for an independent ruling. Given the above, I suspect the 56 days have now elapsed.
The agent you spoke to in the complaints team will have taken ownership of your issue. Either he or his manager will be in touch to explain how they intend to resolve the complaint. Has this happened yet?
The holidays may have slowed down contact but most people are now back at work and it may be an idea to call him and ask for an update. Ask for his manager if he is still away. If, as you say, we've already agreed you don't owe anything, it may be possible to resolve this matter without further delay.
If you are unhappy with the progress made/explanation offered then, as I said above, I would think you are now able to approach the Ombudsman.
All debt follow up is automatically suspended whilst there's an open complaint on your account.
I'm not exactly sure what has happened to produce the bill in question. If readings have been transposed at some stage, it may be all the accounts at the property have been billed to the wrong readings and this is now in the process of being corrected. However, I'm speculating and could well be wrong.
With respect to the Subject Access Request (SAR), ask your complaint handler to arrange this for you. As Jalexa says, there is a £10 charge for this.
Again, I'm sorry for the delay resolving this and for the distress caused.
Malc