Sources and official consumer guidance
General comparison methods are editorial. When legal rights or remedies matter, use current government guidance for the jurisdiction where the purchase occurred.
United States — Federal Trade Commission
FTC Shopping guidance covers buying, warranties and resolving consumer problems. The FTC also publishes dedicated warranty guidance and information about extended warranties and service contracts.
United States — USAGov
USAGov consumer complaint guidance points consumers to complaint routes and state consumer protection offices.
Canada
The federal Consumer affairs portal links to federal, provincial and territorial consumer information. Canada's Office of Consumer Affairs also publishes information on warranties and refunds/exchanges.
European Union
Your Europe consumer shopping rights explains EU rights for purchases from traders, including legal guarantees and distance-selling rules.
Australia
The Australian Competition and Consumer Commission explains Australian Consumer Law guarantees and remedies.