Frank's Home Improvement and Odd Jobs

Initial Business Response /* (1000, 5, 2015/07/25) */
I wrote an invoice showing the cost of materials (including railroad ties) and the separate cost of laborI found high-quality railroad ties from a supplierDue to the quality and size of the wood, they were more expensive than what can
usually be found in regular retail home improvement storesIncluded in the fee for materials, in addition to the cost of materials themselves, are my expenses for finding the materials, my expertise with the materials, rental of a trailer to deliver materials, fuel expenses on my truck, wear and tear on my truck, and my timeShe agreed to the amount on the invoice and wrote me a check for the materials so I could purchase themWhen these materials were delivered to her home, she signed and dated the invoice indicating all materials had been delivered to her satisfactionIt has been more than days since delivery, so the materials cannot be returnedBecause of this, and since I did not collect payment for labor to build the retaining wall, I feel no refund is due to her