Other questions

You need QB Desktop Pro Plus for single user + 9 employees, correct?

I got the following comparison table from @Fiat Lux - ASIA 

If you decide to go with Pro Plus + Enhanced Payroll or Enterprise, you can purchase a new license through them. Please note, the price for the Enterprise does not include the discount you will get if you purchase a license through a reseller. You can contact Fiat Lux for details.