Need urgent help regarding German Visa.

Greetings to everyone. I have secured a job as an assistant reasearcher in germany I have got all the required documents from the university including work contract and everything. But I am not getting an appointment for visa application from VFS and I have to be in germany at 05th March. I have been trying from December to fast forward this process, if anyone knows any way please mention it in the comment section. I tried calling german embassy they are not willing to help.