I would like to inform you that, as posted above by Apoorva, you can follow that process in case of the closure of the Establishment. If your Establishment is presently covered under EPFO, then you can't follow the above-mentioned process.
In your case, you have to write an application along with Form 19 & 10C to the concerned RPFC, in which you have to mention that your employer is denying signing your PF withdrawal form. They will manage themselves.
Regards,
Sunil Sharma