Last Wednesday Royal Mail was attacked by a Russian Hacking group who managed to gain entry to their international shipping servers. They attacked the systems with Ransomware and locked out the whole system. This meant that no international mail could be processed, scanned or tracked.
One week later the systems are still down and Royal Mail cannot receive or send any international mail in or out of the UK. Therefore please don't try to send, receive or place any international orders to or from the UK.
As of today, the 18th January, the CEO cannot give a date for when the systems will be back up and running. The government and GCHQ are involved in the investigation and in trying to repair and fix the issue.
If I learn more I will let you know.