Joseph Gage was shocked to receive a £10k water bill for his one-bedroom bungalow
Joseph Gage, 55, was stunned at the "ridiculous" demand which he suspects has been caused by faulty meter billing him for his entire street's water supply.
He has recently received a warning letter from debt collectors.
Mr Gage believed the bill from company Affinity Water was caused by a faulty water meter at his home in Bramfield, Hertfordshire.
I need to speak to them and they need to clear this up
He said: "I need to speak to them and they need to clear this up, it is a clear mistake.
"I would think whoever typed this figure on the bill would maybe think to themselves 'that seems way too high'."
Mr Gage said Affinity Water told him a faulty water meter was billing him for all 17 properties in his street after he received a £9,000 last year.
He is now unsure if his current £10,540 bill is over two years, with last year's £9,000 bill included, or a new bill covering the past year alone.
He said: "It is getting frustrating, I am trying to get in touch with them over this but I can't speak to anyone.
"I thought after last year this mistake was corrected but now I don't know what is going on. I would like to pay my bills but this is just ridiculous.
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Mr Gage lives in a one-bedroom bungalow in Hertfordshire
The 55-years-old suspects a faulty meter reading is billing him for his entire street's water supply
"I just want to know what is going on with this and move on. I shouldn't have to pay £10,000 for water."
Debt collectors warned Mr Gage over recovery action if he failed to contact Affinity Water over his £10,540 bill in a letter dated 28 March.
An Affinity Water spokesman said: "We are committed to providing the best levels of customer service and have a dedicated team who proactively contact customers if we become aware of any unusual readings.
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Mr Gage also received a letter from the debt collector
"This is an extremely rare occurrence. If customers are concerned our call centre is open 24 hours and we have experienced advisors available on various channels, including social media and webchat.
"We have been looking into this case and are working hard to try and contact the customer to resolve it as quickly as possible."