change of status petition - H1B to F1 query

[meenakshi_1948]

Hi

My husband is applying for his change of status from H1B to F1 through a law firm.
They told us that they applied the petition online. Can we apply the petition online?
If we apply the petition online in how many days do we receive the receipt number?

Please advice. Thanks in advance.

[kabkaba]

Yes, I-539 can be efiled. They should have the receipt number immediately.