Mum Marie Nash-Cox is appalled with the service she is receiving from Vodafone which stopped her contacting hospitals in Bristol for help with her disabled son because of poor network coverage in Marlborough.

Two-year-old Paolo Nash-Cox was born 15 weeks early and spent eight months, one week and a day in hospital.

He has a number of health problems including cerebral palsy and short bowel syndrome and needs a Hickman line and to be tube fed. He also has a blood clot which he needs injections for twice a day.

Mrs Nash-Cox, 38, of Five Stiles Road, has been with Vodafone for two years and says she has always had signal problems.

She said: “I don’t think Vodafone understands how much you need your phone when you’ve got a child with medical problems.

“He has his bloods done every Friday and the hospital ring me back to say if they’re fine or if they need redoing which happened on Friday.

“The hospital rang in the evening to say he needed his bloods taken again on Saturday and they needed to book me in. They got through in the end but they had to try a few times.”

Mrs Nash-Cox’s husband, 29-year-old Jamie Cox, who works at Waitrose, is also a Vodafone customer and has been into the High Street store to complain.

Justin Cook, who runs car hire firm Arrow, started a campaign two years ago to improve Voda-fone coverage and the Marlbo-rough mast was upgraded.

After the service went down again on Monday, Mr Cook wrote an open letter to the company. He said: “It’s not acceptable that we’re not getting a good service.”

Vodafone said the reduced signal was part of a planned improvements was back at 2.15pm.

A spokesman said: “We were upgrading the batteries on the mast. We understand how frustrating it is, but we do make it clear in our terms and conditions that we cannot guarantee a fault-free service.”