During the contract period, I can switch to other plans?

If I had to apply for entry plan (prepaid cost of a year)
Contract period, I can rise to a higher plan?
I want to use multi-currency function．

Upgrade Plan 
Contract period, such as the requirements to upgrade to another plan, to pay an extra "system settings" and "data transfer fee $600/once off.
Therefore, it is recommended that before applying, you must select the right plan
To exempt $800 set-up fee, customers are required to wait for renewal, upgrade and pay plus renewal fee year.
 PS: Our programmers update your system settings I'll keep your existing commodity information, so you do not need to re-upload, very convenient.

Apply for "additional services"
During the contract period, the user can only apply for additional services, additional services include:
     Product display web
     Starter  plan
     Basic  Plan   
    Advanced  plan
But because of the service is in effect, users can not enjoy the instant application Price "and therefore subject to the" original "application attached force.
Therefore, it is recommended to apply for additional services on the first registration of our services, in order to enjoy its Price.