Littlewoods money off voucher explained?!?

[Lauren]

Hi, I am about to place an order to littlewoods online and i have a promo code for £30 off £60 order.
My order comes to £64 and after applying the code it says that the £30 will be applied to my credit account after purchase has been confirmed. I am going to pay weekly for this order and was just wondering if i still have to pay the full £64 or just £34 of it? thank you.

[Caroline]

You are actually applying for a credit account. When they have checked and approved the order they will give you a £30 credit.