PROBLEMS plaguing c2c’s “smart” ticket system have prompted an apology from the train operator, while it has warned certain tickets have been taken off sale.

Following an “urgent review” of all c2c’s Smartcard products and digital infrastructure, the operator has found an issue affecting Peak and Off-Peak Return tickets and Daily Travelcards.

The operator says it is working with its technical suppliers “to urgently implement the required fixes”.

A c2c spokesman said: “We’re really sorry for the issues customers are having with Smartcards.

“While we work on a fix, we're unable to sell day returns and daily travelcards onto Smartcards. Please purchase these as e-tickets or paper tickets to collect.”

Customers who have been unable to use their Smartcard will be eligible for a full refund. If they have repurchased an alternative ticket to travel or have not travelled, they are urged to contact c2c Customer Relations on contact@c2crail.co.uk with a copy of the additional ticket or receipt and the Smartcard ticket booking confirmation.

In the meantime, c2c says customers can continue to purchase Peak and Off-Peak Return tickets and Daily Travelcards from the website and app as either e-tickets or paper tickets.

Tickets can also be purchased from machines or offices at stations on the c2c route.