How do i contact customer support!!

I have sent 3 submissions to student support a day apart from each request and still haven't even received a confirmatory email. I bought my student license 3 days ago and haven't been able to install it since as it keeps saying that I am missing a bunch of .exe files.Is there a customer or student support number I can call or do I have to call the corporate headquarters for an issue like this?

Edu ​​​​​​​