In my discussion with an attorney at the CFPB a form may be requested. But if that form has a chilling effect on the consumer and could dissuade them from continuing on with the claim, it could be viewed as a Reg E and/or UDAAP violation. Imagine a form 6 pages long, one with legal citations and citing criminal offenses for erroneous information – those are to be avoided. The FRB recently expanded on the USAA enforcement action where it essentially threatened to terminate a customer relationship if a claim was false or erroneous. That could impact banking, investments, retirement and insurance products as well as other services they offer.
The best practice is to get the information for your desired form during the initial call. Remember that a written confirmation of the claim could be as simple as a restatement of identifying the accountholder, the account in question, and why they feel there was an error. That is all that is needed for a claim.