Support doesn't help as I'm trying to upgrade to a Business account.

I have been trying for weeks to get in contact with a sales representative to upgrade to a business account. I have been through the "Chat" service dozens of times where I have "chatted" with "real people" who ask a ton of questions and then assure me that someone from sales will help me finalize my account. NO ONE EVER CALLS. Our team is locked out of our account until we can upgrade. I have had chat representatives pretend that I have been non-responsive and end our chat just to avoid confrontation. I work for a non-profit and am required to work with sales to receive a non-profit discount. It has been weeks. I spent a whole business day trying to figure this out (so hours on a single day) The phone number listed eventually just hangs up on you. The customer service line is a scam. Very disappointment and can't even access all our files to move to a different service.