Due to the contractual payment term agreed is once a month (last day of the month+30 days), you may send all our invoices at once, preferably at the beginning of the next calendar month, until the 15th and please ensure you include all invoices with the arrival date last month (1-28 February) so they can be paid at the end of that month in order to avoid delays in payment; (for example, all January invoices (arrival: 1st of January till the 31st of January , to be sent on the statement provided on the 1st week of February and will be paid the last week of February).