Some clients have additionally complained that their on-line orders have been cancelled.

The grocery store says loyalty card and click on and accumulate orders are largely affected.

A Morrisons spokesperson mentioned: “This morning we’re experiencing some system points that are principally impacting some Extra Card reductions and Click on and Accumulate orders. For Extra Card clients who’ve Morrisons Fivers to redeem, these can be carried out manually in retailer by colleagues. And if Extra Card costs are usually not registering, we’ll apply a ten% low cost to the shopper’s complete store.

“For Click on and Accumulate orders, we’re asking clients to attend for an e-mail to tell them that their order is prepared for assortment earlier than heading to retailer. Some dwelling supply orders could also be arriving late in the present day – and we can be speaking immediately with these clients affected.

“We sincerely apologise to our clients for this inconvenience – Your Morrisons Staff.”

Social media customers say their reductions are usually not working on the until, with one individual posting a photograph of an error message on the self-checkout, which reads: “We’re actually sorry some promotions and reductions are usually not working at the moment.”

The Morrisons web site additionally seems to be down, with a “502 unhealthy gateway” error message on some pages.

On the Morrisons Fb web page, individuals have additionally been commenting that Christmas deliveries they ordered a month in the past have been cancelled.

“Half my Christmas procuring is not coming together with the turkey and puddings they usually had been ordered a month in the past,” one individual commented underneath a publish promoting reductions.

Others say they’ve been lacking out on giant reductions in retailer.