In the past I have benefited from using the vouchers so long as my basket reached the required amount say £50/£60/£70 etc, and then the voucher would be deducted followed by any other offers in my basket such as bogofs etc.
This meant i could get a really great value on my shop, but last night my gorceries were delivered and the voucher had not been decucted despite the online register accepting it.
I am not sure weather to ring tesco to complain since if they look at my history each week i have managed to find a code! They might find this alarming.
Also, think I would be on sticky ground cos I did have savings in the basket worth £7 and this is what brought me under the spend level, but as I said in the past this hasnt caused a problem.
Obviously I feel ripped of today, but I have to remember that i have had a good run of discounts in the past so all in all, i am better off.
Just thought you should beware.
I'm switching to Asda from now on!!