John Rumm Wrote in message:
On 29/07/2018 14:05, Jim K wrote:

Why would a shopkeeper or tradesman accept less than the item/job
owes him?

Because they have assumed a certain transaction cost and built it into
the retail price. That likely includes accepting payment in forms which
come at a cost to the trader - such as credit card fees on each
transaction. If you come along and elect to pay in a way which does not
incur them some of their budgeted fees, then they have some more
negotiating space. Much the same when you offer to buy the whole box
rather than a one off...

10%?
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Jim K


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