MORE than 2,000 drivers failed to show up for MoT tests last month despite anger over test backlogs.
There were 2,300 appointments missed in June, the Department for Infrastructure said.
Many motorists have said backlogs mean they cannot book a slot before their certificates expire.
The Driver and Vehicle Agency (DVA) released 2,000 Sunday appointments in June to help deal with the delays.
It also made hundreds of slots available at centres including Balmoral in Belfast, Coleraine, Craigavon, Larne and Newbuildings outside Derry.
However, several motorists contacted The Irish News to complain that they still could not book Sunday appointments online.
Others claimed slots were booked up before they were aware they were even available.
An unprecedented increase in applications for tests has seen the DVA increase the number of vehicles it tests to 20,000 every week.
It encouraged customers to book vehicle tests online as soon as they receive a reminder notice.
"We would ask that customers either attend their pre-booked appointments or cancel them to allow others to make use of the appointment," a spokesperson said.
