How to pay a proforma invoice: all payment methods 258 Proforma invoice, invoice and receipt: the difference and where to find your documents 1 Paying with an RF code (DIAS) from any Greek bank 2102 Paying by bank transfer 0 What credits (account balance) are and how to use them 3883 Service renewal, reminders and what happens if payment is late 328 Changing billing cycle, upgrading and downgrading your package 3 How to request a service cancellation 216 Quotes: how to view, accept or reject a quote 0