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AII-1001-96297
ConfirmedA court, a regulator or the organization itself has stated the core facts, or the record cites a court or regulator source.Supporting sources are pending verification.

Gomo chatbot gives wrong data allowance information, causing roaming charges

A Gomo chatbot gave a customer incorrect information about included data for roaming in France, resulting in unexpected roaming charges. Salt, Gomo's parent company, confirmed the error and agreed to reimburse the customer after initially offering only a plan upgrade.

26 May 2025 Β· Gomo Β· Reliability and hallucination
26 May 2025
AII-1001-96297
Quick facts
Category
Reliability and hallucination
Country
Switzerland
Date
26 May 2025
Drafted by
Raidu Incident Detection

What happened

A customer contacted Gomo's chatbot to ask about data usage and roaming charges while his 14-year-old daughter was in France on a school exchange. The chatbot stated that a data package of up to 3 gigabytes was included in the subscription.

When the daughter returned, she received a roaming bill of approximately 44 Swiss francs, despite having used significantly less than 3 GB of data. A separate data package should have been purchased to avoid the charges.

Salt, Gomo's parent company, acknowledged the error was caused by an outdated chatbot version that had mixed up information in the product description. Salt stated it would reimburse the customer for the roaming charges and has since optimized the chatbot to prevent similar issues.

Reported impact

The customer incurred unexpected roaming charges of approximately 44 Swiss francs due to the chatbot's incorrect information.

Index analysis

Martin Steiger, an expert in digital law, stated that companies should be held responsible for their chatbots' statements, treating them like human employees. He criticized Gomo's initial response to the complaint as problematic and called for faster AI regulation in Switzerland.

Governance controls

Gomo initially offered to waive the roaming charges only if the customer switched to a more expensive subscription plan costing five francs more per month, which the customer rejected.

Classification

Category
Reliability and hallucination
Industry
Consumer services
Country
Switzerland
Harm status
Actual harm
Intent
Unintentional
Timing
Post-deployment
Harm types
Economic or property
Harmed
Consumers
Failure modes
Agent misaction, Hallucination
AI systems
Gomo chatbot

Sources and evidence

Sources not yet published

This record was researched and written by the Index from original reporting. Its sources are still being verified by an editor, and they are listed here once that check is complete. Until then the record carries no reviewer.

How sources are verifiedSuggest a source for this incident