Please check paypal setting. the invoice showed $0 for tax and paypay added sales tax.
Description Unit price Qty Amount
SARDU Licences
Item# 57 €9.90 EUR 1 €9.90 EUR
Subtotal €9.90 EUR
Tax €2.18 EUR
Total €12.08 EUR
Payment €12.08 EUR
Payment sent to davidecosta@sardu.pro
From amount $13.51 USD
To amount €12.08 EUR
Exchange rate: 1 U.S. Dollar = 0.894310 Euros
I am ok with the charges, no adjustment required. this is only for your info.