You should be able to change billing to annual, but Intuit accepts only debit or credit cards; they will not bill you.  You might want to give them a call to discuss it further.

Resolution for 'change billing issue: 'Change Payment Method to Annually Invoice' available: Yes.

The change billing 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 change billing issue yourself by looking for a resolution described in the article. If it is a complex change billing issue or you are unable to solve the issue, you may contact us by clicking here or by using other change billing support options.

For more information about resolving issues related to change billing in Quickbooks/QBO or to get support for the issue 'Change Payment Method to Annually Invoice', click the link below: