Resolved Virtuemart merge clients and orders

hi. i have a question about merging data in virtuemart.
im using multiple virtuemart stores based by country. now i want to merge multiple stores into one.
i can deal with products and all other data, but i need help with transferring users with their orders..
is this somehow possible with ro csvi? because there are users and orders with duplicate ids in database..
for example i have 3 eshops
eshop.eu
eshop.de
eshop.cz

what i need is to take users and their orders from eshop.cz and eshop.de and import it into eshop.eu..
is this possible?
thank you