Demand proof that the lawyer represents that bank. State that it's not reasonable to believe that a lawyer might be telling the truth.
Send the letter back stating the reply is unacceptable in that form and remind him that he still has not provided a bill or proof of claim...
...or you can circle-jerk to clubhouse rules, like Derek. See if you can GUESS who's better to listen to... Scott Duncan>>
Printed copy · Anthology Volume 6, page 353 · cut by a page breakPrinted copy from The Tender For Law Anthology, Volume 6, page 353 (printed 13 June 2014). Added by this site; not part of the Facebook export. A page break in the printout cut off the beginning of this comment, with its name.