Bank Charges

nice doesn't work for banks but FWIW, what I always do for service companies that are giving you the runaround is write stating your position, and that any further discussion that they wish you to enter in to on this matter will be charged at your standard rates of £150 per hour (or part hour thereof) plus solicitors fees which will be recharged at cost, and that by writing to you regarding this matter,
they acknowlege and accept full liability for these costs.

If they are stupid enought to write to you again, include an invoice (FAO accounts department) with your next letter. Then call them up and ask for details of their legal department saying you need to pass these on to your solicitor as you're considering taking legal action for harrasment.

That is excellent !

Cheers, cut and pasted into my folder of 'good stuff'. :)