Among those feeling the wrath of customers are RTÉ, Uisce Éireann, Fastway and Ryanair.
The Credit Union is the customer's champion for the 10th year in a row.
It has again topped the annual Irish Customer Experience Report, which measures consumer sentiment towards the country's leading brands.
Among those feeling the wrath of customers are RTÉ, Uisce Éireann, Fastway and Ryanair.

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