Contact them tomorrow when they are open and see what option you have. Support can help you with this issue: https://community.intuit.com/articles/1145770-how-and-when-can-i-contact-support-usa-only

Resolution for 'changing businesses issue: 'I’d like to reinstate my QB acct, but it does not let me choose a monthly plan, only full year. I’m in the process of changing businesses and may not need a full year.' available: Yes.

The changing businesses issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the changing businesses issue yourself by looking for a resolution described in the article. If it is a complex changing businesses issue or you are unable to solve the issue, you may contact us by clicking here or by using other changing businesses support options.

For more information about resolving issues related to changing businesses in Quickbooks/QBO or to get support for the issue 'I’d like to reinstate my QB acct, but it does not let me choose a monthly plan, only full year. I’m in the process of changing businesses and may not need a full year.', click the link below: