WhatsApp Locked Out My Account Due to Spam Flag and I Can't Access Class Materials

I'm highly annoyed with WhatsApp because my account got flagged as spam and I was locked out without any means of appealing. Whenever I attempt to do so, it consistently displays an error message, preventing me from sending or receiving any messages. This is causing significant problems for me because I depend on WhatsApp for my classes, where crucial materials and assignments are shared. Currently, I am unable to access them, which is negatively impacting my academic progress. I need WhatsApp to quickly restore my account so that I can resume my work. I find this situation to be completely unacceptable.