Job description
Modification of WooCommerce checkout form (cooperation with WPML) with option to choose radio: receipt/invoice and conditions: if receipt or fv country Poland Vat is charged, second condition receipt + other EU country then Vat is charged, invoice + other EU country then Vat is not charged in the shopping cart (cooperation with WooCommerce Multilingual & Multicurrency plugin. Currency if PL language is PLN if other language is only EURO (this is how it currently works).