Sharepoint missing - how to get support?

After numerous attempts I finally got someone on the consumer support team to get me through to the business support team, and I have a support ticket with them. Their best guess so far is that I was using some free licence (that much I can confirm - I've never paid for this) which for some reason expired. They're not sure what licence it was (and I don't know - I created this site years ago and I haven't needed to touch anything on the licensing side since) but they have told me that if I want SharePoint I need to pay for a Business Basic licence. I have asked whether doing so will retrieve my SharePoint site, because that's my only motive for paying. They're trying to figure that one out for me.