Check out www.clothingattesco.com and click on the yellow banner at the top of the page ("save up to £25 on the latest fashions"). Fill in your details and they will send you vouchers worth £25 to spend in store and also enter you into a prize draw for £500.
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Terms and conditions for registering to receive £25 worth of vouchers:
Upon registering at www.tesco.com/clothing to receive regular email newsletters, entrants will be sent in the post coupons equating to £25 against nominated spend in single transactions on any clothing (£4 off spend of £20, £5 off spend of £25, £6 off spend of £30 and £10 off spend of £50). Coupons will be sent within 6 weeks of registering. Registration is open to all residents of the UK & IOM. Only one registration is valid per individual. See individual coupons for full terms and conditions.
Tesco Stores Ltd, Tesco House, Delamare Road, Cheshunt, Herts EN8 9SL