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United KingdomFinance and insurance2019 – ongoing

NatWest Group

Marge mortgage-support assistant for call-centre staff

NatWest's Marge mortgage assistant reduced call duration by 10%, according to IBM

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Problem

Mortgage staff needed accurate policy information during customer calls while products and regulations changed.

Approach

NatWest and IBM co-created Marge, an AI mortgage-support platform connected to the bank's data. Call-centre staff typed keywords into a console to retrieve support while speaking to customers. NatWest's 2019 annual report recorded the assistant's introduction.

Results

10%decrease in call duration after implementing Marge, reported by IBMVendor case study[1]
20%improvement in customer Net Promoter Score after implementation, reported by IBMVendor case study[1]

Takeaway

Marge supported employees during calls. IBM reported shorter calls alongside improved customer loyalty, without specifying the measurement period.

Categories

Innovation type
Process innovation
Evidence
Vendor case study

Sources

  1. Taking the pain out of purchasing a home
    IBM2021Vendor publication
  2. Annual Report and Accounts 2019
    The Royal Bank of Scotland Group2020Company publication

Source summaries

[1]IBM2021

IBM described Marge's use by mortgage call-centre employees. It reported a 10% decline in call duration and a 20% improvement in customer Net Promoter Score.

[2]The Royal Bank of Scotland Group2020

The group's annual report recorded Marge's introduction to retrieve information for mortgage call-centre agents. It discussed the assistant alongside paperless mortgage processing as changes that shortened mortgage-offer processing.

Full details are in the original sources.

Added 1 Nov 2026 · Updated 1 Nov 2026
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