H1B DROPBOX appointment after changing employer

[kikyo]

Hi, I scheduled a DROPBOX visa interview at the Hyderabad Consulate with my H-1B receipt of company A with an appointment date of June 15, 2023, for DROPBOX. Now I have switched my job and have a new receipt no. for H-1B. Also, I do not want to lose my appointment for June 15, 2023. Please let me know if there is a way to https://nox.tips/ correct my application or do I have to fill in the new application altogether and pay the fee again - to say to go through the process all over again. Can I still use DROPBOX for this appointment?

Please advise...