From the best and worst companies to how to get treated fairly - ask our consumer champion anything

In her weekly column for the Guardian, Anna Tims solves readers consumer problems – ranging from the devastating to the ridiculous. She’ll be online at 3pm to answer your questions and share her wisdom

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Each week Anna Tims helps Guardian readers deal with consumer issues that can range from mildly annoying to utterly life-wrecking.

Anna will be joining us online at 3pm BST. Ask her anything about what she’s learned over the past few years, from the best and worst companies she’s dealt with, to the most unlikely and difficult issues she’s helped Guardian readers face.