how did you able to talk with agent?

You will need to upload evidence. Get your father's birthday certificate, doctor's letter stating his condition. Translation of the documents can be done here by anyone who is competent in both languages and must sign the document stating their knowledge. Next you expedite anything make sure you have the evidence first and then expedite. Start working on your evidence immediately or your expedite will be denied

Thanks William U ut was helpful. I will start collecting documentation for upload

I am in the same situation. I recently talked to T2 officer and he asked about evidence. I said that I do have documents. He said you contact you back for documents in email but been over 1 month, haven’t got any email yet. So, I have prepared hospital letter, relationships certificate by gov and my personal documents. waiting for email so I can provide my evidence to them. thanks

I've used https://wisenotary.com/ for certified document translation. They work with USCIS.