A recent bad experience
I recently bought a can of paint costing 9 bucks. At the same time I returned a tool worth about a dollar. They charged me $8 for the paint, after giving me $1credit for the tool (so I paid $9 total). The paint was the wrong sheen, so after trying a dab I brought it back to the store for a refund. The first problem: the receipt had the wrong kind of paint on it, and it said that the paint had been returned already (wrong, they swapped paint when I bought it but hadn't corrected the receipt). After 20 minutes of trying to make a refund, they offered me back $8. They said I had already received the refund for the tool so they wouldn't refund the whole $9. The manager also refused the rest of the refund.
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Does this make any sense at all? Sure it's only a dollar, but what if the returned item was a $100 sprayer? Suppose you bought a $2000 car using $1000 cash and $1000 credit they gave you for a trade-in. Then you returned the car, and they gave you back your $1000, but kept the trade in too, because they had credited you its value in the original sale! That would land the dealer in jail. If the sales staff and
manager at Miller can't do this simple math, I can't trust them with any larger sales (or any business at all).