A pharmacist resigned due to an owner's poor behaviour but is still facing issues as the owner continues to use their registration number to run the shop. Despite multiple visits to the drug control office and sending registered mail, no action has been taken. The advice suggests that the pharmacist may not have followed all legal procedures and recommends sending a formal legal notice to the owner, copying the drug controller, and potentially filing a suit for injunction if authorities remain unresponsive. Filing a writ of mandamus in the High Court is also suggested as a recourse against the department's failure to act.