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Banking

Drafting complaint and FOS response letters

A retail bank could use AI to draft first-pass complaint and FOS response letters, grounded only on bank-approved policy and the case file.

Retail bank A couple of months to value

The challenge

Complaint handling is high-stakes, document-heavy work with hard deadlines. Manual letter drafting often becomes the bottleneck.

The approach

  • 1Capture the case file and bank-approved policy in a private AI assistant.
  • 2Generate a first-pass response letter against an approved template.
  • 3Have the case handler review, edit, and sign off before sending.
  • 4Maintain a clear audit log of edits between draft and final.

Potential outcome

  • Faster turnaround on complaints, with fewer breaches of statutory timelines.
  • More consistent tone and structure across the team.
  • Case handlers spending more time on the customer, less on the letter.

Tools used

Private LLM with retrieval Complaint case management Document audit log

How a sensible pilot could look

The fastest way to test a use case like this is a tightly scoped 30-day pilot rather than an open-ended rollout. The shape we recommend in almost every UK SMB is the same: one workflow, one owner, one success metric, one decision date. The point is to learn quickly and cheaply, not to transform the business in month one.

In week one, map the current workflow end to end and time it. This baseline is non-negotiable - without it, you can't tell whether the AI made things better, worse, or about the same. In week two, set up the tool and train two or three people deeply rather than rolling it out widely. In week three, run the new workflow alongside the old one and capture friction in writing. In week four, review the data, decide go or no-go, and write up what you learned.

Even a no-go is a successful pilot if you understand why. The worst outcome is a 'maybe' that drags on for another month and quietly absorbs the budget.

What to watch out for

  • Picking too broad a workflow. Narrow it until it almost feels too small - you can always widen later.
  • Skipping the baseline. If you don't know what 'before' looked like, you'll argue about whether 'after' is better.
  • Removing the human review too early. Almost every successful AI rollout in an SMB keeps a person on the final decision for far longer than the vendor suggests.
  • Letting the success metric become a feeling. 'The team likes it' is not a metric. Time saved, error rate, response time, conversion - pick something measurable.
  • Pasting client or customer data into a public tool. Use the approved one, or don't paste it at all.

Questions worth asking before you start

  • Who owns this? Not a steering group - one named person whose job it is to make this work, with the authority to change the workflow rather than just observe it.
  • What does success look like in numbers? Pick one metric, write it down on day one, and don't change it mid-pilot.
  • What data is the AI allowed to see? Be explicit about what's in scope, what's out of scope, and where outputs are stored. Document it before the pilot starts, not after.
  • What happens at day 30? Diary the go / no-go meeting now. Invite the people who can actually decide, not just the people who'll be in the room anyway.
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