Harrassment is not easily definable (at least, not in law). Essentially, this is the area of English law where reasonableness comes into play. The court will consider what a reasonable person would do under these circumstances.(posted 8266 days ago)For example:
If you had asked HSE/Halifax not to contact you at work, and you responded in a courteous manner to any correspondence they sent you, and they still persisted in phoning you at work, then that would be harrassment.
Similarly, turning up uninvited at your place of work or where you live would be harrassment.
If they telephoned you at home and you had specifically asked them not to, and to write instead, then I think this would also constitute harrassment.
Personally, I think you've got a VERY good case - if you don't hear anything in 14 days then I think you can fairly say they've dropped their claim.
Let's say they suddenly pick it up again in 3 months time - I think this would clearly be harrassment and I suspect, given your efforts to sort this out, the courts would agree.
I'm not in the legal profession, I should add - these are just my opinions...and I won't be offended if anyone says I'm wrong !