Customers of TSB bank, the former Cheltenham and Gloucester, have reported their cards being declined in shops today.
The bank took to Twitter to admit it is experiencing problems with its ATMs and debit cards.
The company gave a statement on Twitter saying: "We’re having issues with ATMs and debit cards at present.
"We’re hoping to have this fixed shortly, apologies for inconvenience caused."
WARNING! Halifax, Lloyds & TSB customers? Reports debit cards not working. Take an alternative form of payment if ggoing out. PLS SHARE
— Martin Lewis (@MartinSLewis) January 26, 2014
Lloyds, Halifax and HBOS customers have also reported having difficulties with using their cards at cashpoints on Twitter.
One customer Julia Abbott tweeted: "Lloyds bank atm and card service down. 20 mins on hold to be told this. Nothing even on website. Shoddy lloyds. ... shoddy."
TSB has more than 630 branches across England, Scotland and Wales.
On its website, it says: "TSB customers are able to use any Lloyds Bank branches that may be convenient for some time to come."
The bank was launched in September 2013 and was formed from Lloyds TSB branches in England and Wales, all branches of Cheltenham & Gloucester and the business of Lloyds TSB Scotland