Naming specifications and acceptance of invoices by Estonian companies
To finalize a transaction on merXu, the seller first sends the buyer a Pro Forma invoice. After the payment has been done, the seller will be able to issue a Final Invoice for the buyer to participate in merXu’s promotions and upload the invoice via My merXu > Promotions tab.
That is the standard procedure in all of but one merXu’s countries - Estonia. It is not common in Estonia to use separate invoices for this procedure.
With that being said, Estonia is the only country for whom merXu also accepts the promotional invoice upload as Pro Forma invoice under one condition - the buyer must send the seller payment confirmation after the payment of the invoice via messenger.
As for the sellers of Estonia, if the foreign buyer wishes to receive a final invoice for the purchase, the buyer must ask this via the messenger.