What is another word for aggrieved client?
Pronunciation: [ɐɡɹˈiːvd klˈa͡ɪ͡ənt] (IPA) 
An aggrieved client is a customer who has been wronged or mistreated by a business or service provider. There are many synonyms for this term that can be used to describe the same situation. These include dissatisfied customer, displeased client, unhappiest patron, disgruntled customer, and unhappy consumer. All of these terms imply that the client has a legitimate complaint or grievance against the business or service provider. It's important for organizations to recognize these complaints and take proactive steps to resolve them, as they can have a significant impact on customer loyalty and satisfaction over the long term.
