Thanks Christine for your advice. I think I can wait some more days and then I will submit my work.
I am just thinking that may be something has happened because he wanted some files to be translated urgently the same day and then he did not reply or did not even see the message and this is really weird.
BTW, I think to each his own way when it comes to dealign with customers and I am just trying to figure out what will work better for me as a new Upwork freelancer.
Thanks a lot for your reply.
Actually I am new to Upwork and this is my first task here. BTW, I learnt what to do with future contracts.
I like what you suggested about getting paid after finishing every single task because this will make it easier. But I really do not like to close contracts because there might be something happened especially in these challenging circumstances, who knows!
Thanks again for your your precious advice.