Video report by ITV News Consumer Editor Chris Choi
UK drivers have expressed anger after some Post Offices around the country have run out of the driving permits required to travel in the EU in the event of a no-deal Brexit.
The backlash comes because if the UK leaves the EU without a deal on April 12 EU countries will not recognise a UK driving licence without an additional permit.
In a statement to ITV News, the Post Office confirmed a high demand for the permits and assured worried travellers that more stock would arrive by 2 April.
Why would UK drivers need an International Driving Permit?
In the event of a no-deal Brexit, the Government confirmed that EU countries would no longer recognise UK driving licences.
Therefore, UK drivers would need to apply for a permit, costing £5.50, from the Post Office, if they wish to drive in European countries after April 12.
How do you apply for a permit?
Bring along a full valid UK photo-card driving licence, a passport-standard photograph, and a valid passport as proof of identification if presenting an older paper version licence.
Each permit costs £5.50 and the driver must be a resident of Northern Ireland or Great Britain, have a full UK driving licence and be 18 years old or over.
Does it matter where you're travelling to?
The UK issues three types of IDP to UK licence holders who are resident in the UK: the 1926 IDP, the 1949 IDP and the 1968 IDP.
Each permit is only valid in certain European countries and it gets complicated if you're travelling between countries within the EU.
If you're crossing between Spain and Portugal for example, two different permits will be needed alongside a UK licence.
You will need a:
1926 permit to drive in Liechtenstein
1949 permit to drive in Spain, Iceland, Malta and Cyprus
1968 permit to drive in all other EU countries, plus Norway and Switzerland
If you're driving outside the EU you'll need to get a new International Driving Permit, which supersedes the old version.
What has the Post Office said?
In a statement, it said: "There are 2,500 Post Office branches across the UK providing International Driving Permits (IDPs). Some of these branches have seen high demand this week.
"We’d like to apologise to any customers who have been unable to purchase an International Driving Permit at their chosen branch.
“We have plenty of supplies of IDPs and we have been providing branches with extra stock this week. Many will have received new supplies today and the remainder will receive this by 2 April."