The work was not paid to the end unfortunately for a lack of time, the customer denied all the files before the start of the work, the first day the first functional was turned off, the next day the file was received from the customer, during the development it turned out that time takes a little more than expected for this, the work I performed I transferred to the customer, he took it, and gave it to another executive, if my work did not install it, he could give up my work, which he took himself and assessed the yield and the cheapest