Rejected despite referral. Am I really that unlucky?

I'll try and keep this short. I won't be giving the name of the company for fear that this might be used against me.

My girlfriend's brother in law (BiL) kindly vouched for my at the lab he works in. He has worked there for almost 10 years and hasn't vouched anyone until me. You can imagine how chuffed and grateful I was/am.

A few months back I had a video call with the HR to discuss possible job opportunities. She and I went through my CV. She recommended some modifications, I altered my CV following her suggestions and she mentioned a particular job that would correspond to my CV.

Last week I applied for the job.

Bear in mind that my brother-in-law's superiors were 1) aware I had applied, 2) that BiL has vouched for me and 3) that BiL superiors had explicitly asked HR to hold onto my CV.

She did nothing of the sort. For some reason she didn't hold onto my CV for her superiors, and apparently she didn't even read the CV at all... No explanation, just an email saying that the job application had closed. An email I probably would never had received had I not sent a polite and professional email asking for news.

I don't know what happened and I certainly don't think there's anything I can do.

BiL is going to talk to his superiors about what had happened, but I think it's done for.

Sorry for the length. I would really like to hear your thoughts.

Rejected despite referral. Am I really that unlucky?
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