Starting April 1, when applying for an application form (I-129) for a professional work visa (H-1B), the fee for supporting documents is paid by a separate check.
The United States Immigration Services (USCIS) currently reviews each fee separately when an H-1B applicant files separate applications, such as an application to change immigration status (I-539) or an application for a work permit (I-765) during however On the 25th, it was announced that from April 1st you would have to pay a separate check for all of them separately.
Since USCIS is introducing an electronic processing system for all immigration benefits applications, USCIS explained the background is that if the fee for each application is added up and submitted as one check, processing becomes impossible.