Deposited I-140 filling fees

[Charlie44]

I sent my NIW petition supporting materials to my attorney with a check for USCIS (I-140). Before reviewing the materials, the attorney deposited the check in the law firm's a/c. I got to know it because my bank emails me scanned copies of all drawn checks. When I asked, the staff said that it was an error but they advice clients to write the checks to them so that it's easier to follow up in case of problems with the application but they didn't tell me that. Still the check was written to immigration and I find it abnormal that anyone including their bank would allow it. Has anyone encountered such or is this a sign of bigger things to come? Should I prepare to run?ed me a scanned? They are yet to review my materials and write the petition letter but I have paid them as per our agreement.