Consumers may be able to file an American Home Shield class action lawsuit if they have experienced financial harm at the hands of the home warranty company. They aren't useless, I've used ours many times with the expected result.Folks need to know what's in the contract! Contact AHS customer service. We can help you sign up for a new home warranty plan, log in to your account, make a claim, or answer other questions. Forprofit organization and world's largest provider of arbitration, mediation and other alternative dispute resolution (ADR) services. Arbitration Act and federal arbitration law applies to this Plan. Agreement. Find out how to address problems with American Home Shield. Discover the steps to document issues, submit complaints, and seek resolution. Customer: I had a dispute with American Home Shield For my rental house in Arizona.