I have the same issue as above, 25 years of QB desktop. Sent 9 hours on telephone support over 2 days, speaking to 8 different people. They don’t know what to do either and just cut you off when they get stuck.

the last guy deleted a 20 year old account the mysterious came across with a £22,000 balance in it, after deleteing none of my other account balanced. He relalised what he had done and hung up immediately 

next person said we could see what has been done in the audit log but couldn’t recover so purge everything and start again from scratch.

dont know what to do, I have run payrolls and invoiced clients already