Roadking:As I have stated previously these events have reduced me to tears of frustration and worry and I would like to receive at the very least a letter confirming that Eon have messed up and an apology.
If you have complained formally as you indicated in a previous post, and the call is a response to the complaint, and you remain disatisfied you are entitled to escalate the complaint in accordance with the Eon complaints procedure.
You are the sole person to decide whether or not you are satisfied. If you remain dissatisfied when you receive the "final response" or after 8 weeks, whichever occurs first, you are entitled to ask the Energy Ombudsman to consider the complaint. That service is free to you and something the energy supplier hates.
You should make sure that Eon are aware that their treatment has reduced you to a wreck and that you do not consider it likely that an outcome without an ex-gratia compensation element will satisfy.