Economy Minister Gordon Lyons answers your questions about the High Street voucher scheme and tells Linda how and when people can apply, and where he hopes to spend his £100. Can you trust a letter that claims you are due a tax rebate? HMRC spokesperson Marguerite Kerr shares her tips and advice on staying safe and avoiding scams, whether you're young or old. Linda talks to Laura Johnston of the UK International Consumer Council about online travel subscription scams and how to avoid falling into a subscription trap. And with a long-awaited change to the law to allow charities and other societies to sell lottery tickets online, Chief Executive of the Northern Ireland Council for Voluntary Action Seamus McAleavy tells Linda about further legislative changes soon to be debated. Email:OnYourBehalf@bbc.co.uk