Have a look at the MCCAA Consumer Handbook! 

The Consumer Handbook provides consumers with simple and clear information on their rights and responsibilities when they encounter difficulties during their purchases. The Handbook is composed of seven main sections which include information:

•  on consumers' rights when buying a product or service, physically from a shop or online;
• about the sellers' obligations in relation to the indication of prices when offering goods for sale;
• about air passenger rights;
• on travel packages.

The Consumer Handbook also explains in detail what consumers need to do to complain effectively when they have a problem with the product or service purchased.

The Maltese version can be found here.