such a small mistake on my part not to notice that :(
With my other query relating to if the website admin creates a theoritical coupon value of 99% or even 100% discount. how might I overcome that (I understand why its not working since if there is a 99% or 100% discount then then subtotal would be less then £1 and paypal doesnt like that. i know somewhere i overcomed this problem with the gift vouchers. but with coupons the discount wont ever be allowed to delivery costs so if an order is below £1 then delivery cost would still need to be paid for via paypal.