@Anonymous 

QB did refer us to another company to do the migration for us for a little over $300, but their reviews were not great and the fact that QB recommended them was enough to scare me off. I'm happy paying a good employee to re enter all of our transactions just to get away from the nightmare of QBO, their 'superior' software.

If you need to convert data with single currency from QB Online to QB Desktop, you should contact @Fiat Lux - ASIA . They may offer a refund option if you are not satisfied with the results.