Dear Sirs/(agents name),
Thank you very much indeed for completely wasting my whole afternoon by breaking your appointment callback. I really appreciate that, having sat waiting almost 3 hours.
For your information, I purchased a brand new SD card - as you instructed - and also paid Amazon an extra £4.95 to have it couriered 48 hours express delivery, so that I would have it guaranteed this morning ready for your callback. So thanks again for also wasting my money also!
For your information, I shall be filing a formal- complaint about this lack of service, and also the fact that you have been completely unprofessional here!
Please do not contact me now as I shall be raising the situation, in writing, to your Management Team.
To say that I have now spent over £250 on two Sony products within the past fortnight, I feel deeply insulted that you choose to disrespect your loyal customers in this manner. In short, I find it utterly disgraceful on your part.
Thank you.
(my name)