Welsh Water Follow The ZIPZERO Team 22 February 2022 17:00 Updated Name of service provider: Welsh Water Sort code: 52-21-07 Bank account: 01500007 Customer account number: Please include your customer reference when making your payment. Related articles How does Online Shopping work? Is £10 the maximum I can use to cash out towards my bills? Caerphilly Council Are there any utility bills I can’t pay with ZIPZERO? What are the differences between Base and Premium units with the new update? Comments 0 comments Please sign in to leave a comment.