If you have provided payment information, you will need to delete your information so that the payment cannot be accepted. After that, you will return to the free version. I had a similar case when writing a research paper, but part of my notes became inaccessible, and I almost got into trouble. I was lucky to find https://edubirdie.com/essay-editing-service where they took all the remaining text and edited it, which gave me a good grade. Now, I keep copies of my notes on different devices to avoid data loss. I hope you were able to recover everything.