I have had a personal account for years and use it regularly to catalogue a high quantity highly importnat personal information. I opened the app yesterday and the login details no longer work, suddenlty returning the message that my email isn't associated to an active account. My account has seemingly been de-activated with no warning, no explanation, and seemingly no option to re-activate it. I wrote to airtable support to explain this very clearly and they sent me back a template email saying I should use the help centre (which I'd already tried) and declining to address the issue. I even said I'd be happy to pay to upgrade in order to regain access to my account. What is going on?