Oh dear,was passed the voucher codes for Sainsbury's on Tuesday night and used them to order some goods for delivery,this meant that i was getting £43 off a £60.95+£5 delivery order.They have now sent me an e-mail claiming i was a victim of an online scam,when quite clearly they're guilty of being unprofessional and lazy with their website.Where do i stand legally?
  IMPORTANT MESSAGE ABOUT YOUR GROCERY ORDER 
 Dear Mr ******, 
 We have noticed that the order you have placed with
 us contains multiple voucher discount codes. This
 is against the terms and conditions stated on the
 actual vouchers and therefore we cannot honour your
 order in its current form.  We are sorry that you
 have been a victim of this online scam.  We know
 that this will be disappointing for you but the
 e-mail that has been circulated with these voucher
 codes is not a genuine Sainsbury's e-mail.   
 As a gesture of goodwill we have decided to honour
 one voucher if you would like to proceed with your
 order.  If this is the case please go onto the
 website at 
www.sainsburys.co.uk and use the
 'amend order' option to remove all but ONE voucher. 
 Please do this by 10pm on Thursday 14th December. 
 If you have not amended your order by 10pm on
 Thursday 14th  December we will assume that you do
 not want to go ahead with your order and we will
 cancel it.  We need to act quickly, not least to
 ensure that delivery slots are available for many
 customers who are trying to book delivery slots
 for their Christmas shopping. 
 If you need further advice please contact our Customer
 Contact Centre on 0845 301 2020. 
 Kind regards 
 The Sainsbury's Online Team