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CroatiaFinance and insurance2023 – ongoing

Zagrebačka banka

Mia Croatian-language voice assistant

Zagrebačka banka's Mia automated 27% of calls, PolyAI reported

WorkingVendor case studyVendor ↗

Problem

A complex telephone menu and long waits left callers abandoning the bank's contact center.

Approach

PolyAI deployed Mia in 3 months. The Croatian-speaking assistant answered routine banking questions and routed other callers to the appropriate department.

Results

27%of all calls automated, according to PolyAIVendor case study[1]
83%faster routing than the previous telephone menu, according to PolyAIVendor case study[1]
14 pointsNPS increase within the first 6 months, according to PolyAIVendor case study[1]

Takeaway

Mia combined routine answers with routing for requests that still needed staff.

Categories

Business function
Customer service
Innovation type
Process innovation
Evidence
Vendor case study

Sources

  1. Improving NPS by 14 points with UniCredit
    PolyAI22 May 2026Vendor publication

Source summaries

[1]PolyAI22 May 2026

PolyAI described Mia's Croatian-language answers and call routing. It reported 27% call automation, 83% faster routing and a 14-point NPS increase within 6 months.

[2]PolyAI2024

PolyAI announced Mia's results at Zagrebačka banka. It reported 27% call automation and linked to the customer story.

Full details are in the original sources.

Added 1 Nov 2026 · Updated 1 Nov 2026
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