Hello, My name is XXXXXXX, XXX I'd like to assist you today
Can you please state the model number of the iMac? It is under the 'About this Mac' option, when you click on the Apple at the top left.
I note that I have been billed even though I terminated the transaction without receiving any help from you. I shall report your fraudulent behaviour.
you betrayed your ignorance by seeking the model number of my iMac. This is irrelevant to the problem, which I have found to be kernel panic, a problem to which all iMacs are prone. I gave you sufficient information for you to identify the problem, although not the root cause.
To bill my account before I have indicated that I am satisfied with the "Answer" is tantamount to fraud. I expect a full refund.
Please stop bothering me.