LifeinAsia - 7:08 pm on Jan 16, 2013 (gmt 0)
Sorry- misread the OP.
I'd send a certified letter to the person saying the order was cancelled and his credit card was not charged. You consider the issue closed and do not want any further communications about the issue. State that you consider any further harassment by his part on the issue to be actual harassment and will be reported to the police. Then set your e-mail server to block any messages from that address.