we are a web and mobile app development company. samuel goldwitz owner of watchus.com came to us with their requirement to get the data from old website and update it in spreadsheet there were over 1500 enteries that we compared and updated in the spreadsheet. then client asked to send the spreadsheet so that he can check so that the work done is correct or not and said he will pay after that. but now the client is skiped on payment. Now he is not answering calls and not responding on email.