Eon-ough is enough

Few, if any, of us would buy from an organisation that allowed its telesales staff to harangue us during a 'cold call', yet energy supplier Eon seems to be going out of its way to alienate customers by doing just that, if our recent experience is anything to go by. Last week, my wife was called on her mobile by an Eon representative who asked to speak to me. Having explained that the call had come through to her and that I wasn't available, the caller abruptly hung-up. Yesterday, however, she received another call, again intended for me, but this time the caller insisted, or perhaps persisted, in trying to get the message across. The call came while my wife was at work and she explained that we didn't need boiler cover and that she was busy and couldn't talk. Instead of accepting this, the caller proceeded to speak with increasing volume and speed, doubtless to ensure they reached the end of their script faster than my wife could hit the red button. Caller failed - and now Eon have received a non-too polite email to Customer Services pointing out that another call will result in us changing energy suppliers. Calling the mobile is interesting as our landline is registered with the Telephone Preference Scheme (TPS) and we've told Eon only to contact us via email. It's also interesting that they seem so keen to sell central heating insurance now - is this a response the the government's tariff reduction plans?