I mailed all the application materials to my local office, including all the checks. In about 3 weeks, I got a few letters (looks like normal letter size paper, tell me that they received all my materials, giving me different receipt NO, for i-485, i-765 and i-130 for my hu*****and. If you don't have A number before, they will give you an A number too. You can use those receipt number to track your case status online, you should get the same thing as I do, I don't know why yours is different.)
Good luck.