You can refund the donations to the system and merge the records by following these steps:
  1. Do a refund selecting "No, the participant has already been reimbursed or will be reimbursed offline. Just record the refund in the Convio database." to refund the problem transactions.
  2. Do the merge.
  3. Once the merge is done, for reporting purposes re-add transactions as a gift with a soft credit associated with the parent registration that is left after the merge.
  4. Once the gift is associated as a donation, submit a case to support so we can convert the gift to a registration.