回複：回複：雇主改變決定, 讓我回去工作, 我該怎麽辦?

USCIS has received my H4 application today based on UPS tracking. Should I revoke my H4 application now or until I receive the recepit and case number. Will my H4 status starts from the date they received my application package or unitl approval. Am I still in H1B status during this period since my employer did not revoke my H1B yet? What document should I prepare for the revocation of my H4 application?

Thank you!