Welsh Water to give all customers £10 bill credit after misreporting leakage volumes – here's what you need to know

The firm, which supplies water to most of Wales and some parts of England bordering Wales, said it was "very sorry" for the errors and that it had "made the necessary changes" to its processes. It told us no customers were overcharged as a result of the issues.

Many can save £100s on water and sewerage bills but don't realise it – see our Cut your water bills guide for more info and help.

You'll get the £10 bill credit automatically in the coming months

Struggling with your water bills? Help is available

If you're on a low income and getting certain benefits, you may be eligible to receive support through Welsh Water's 'HelpU' tariff to reduce your future charges – see the Welsh Water website for more information and to apply.

Plus, if you don't already have one, it's also worth checking if you could save by having a water meter fitted. You can do this using the Consumer Council for Water's free water meter calculator. It asks questions about your water use and tells you your estimated costs if you had a meter. If the calculator shows you're likely to save money with a meter, you can then request to get one on Welsh Water's website. 

For more help and tips, see our full Cut your water bills guide.