Discount Voucher Dilemma

I have access to a discount voucher scheme which allows me to by vouchers that can be traded in for goods that I use frequently and this represents a 5% saving. So worth having. I buy the voucher at 5% less than the face value and then trade it in at the face value. This is legit btw !

Here’s an example… Voucher purchase price £95 Voucher face value £100

I then use this to buy something for £110. To do this I trade in the voucher at the face value of £100 and make a debit card payment of £10. The retailer provides me with an invoice for £110.

When I then subsequently do end of month reconciliation I have an invoice for £110 that needs to be reconciled against actual outgoings of £105. Whats the most appropriate approach to this in CB?

I have considered adding a seperate negative discount line to the bill to represent the value of the savings so that the invoice value match the bank statement outgoings.