That would be a faff Jo, the Tesco one was easy, just pour the money in and out pops a shopping voucher to use at the till - I 'think' the Sainsburys one is the same but not sure as I haven't used it.
Can't remember how much the commission was, but remember thinking it was less than I expected
Bb says he thinks it was just the one voucher, for the whole amount.
We used to do it in bags and change it at the bank, but that was when Bb was going all the time to bank cash anyway.
I can't carry those kind of weights and he never remembered, that's why I gave up and did it this way