I work for Lowe's Home Improvement Stores. I don't like customers that come to my store and ask for extra discounts just because they don't want to pay the price.
We only match the same product ( brand ). The famous words is I'll just go to Home Depot. or Walmart if it was the same way didn't you buy it from them. Seems that Lowe's product is better quality.
If customer don't like what they hear they call home office and lie about what happened causing problems for the employee. Customer needs to learn that Lowe's isn't flea market.