are you sure?
I think the unreceipted subsistence claim for a lunch or coffee break when away from the office is quite normal.
I particularly recall one company I was at withdrew the lunch allowance and said all the engineers should return to the canteen at their nearest depot.
The overnight accommodation allowance (staying with friends) was carefully calculated to be less than the amount they could have charged for staying at one of the approved hotels.
I think the unreceipted subsistence claim for a lunch or coffee break when away from the office is quite normal.
I particularly recall one company I was at withdrew the lunch allowance and said all the engineers should return to the canteen at their nearest depot.
The overnight accommodation allowance (staying with friends) was carefully calculated to be less than the amount they could have charged for staying at one of the approved hotels.