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A customer trying to call British telecoms operator BT Group was left hanging on the telephone for a total of 20 hours, according to a British newspaper.
The Times reported that Hannah King, 51, called a company helpline after a BT engineer failed to turn up to install a telephone line at her new flat in Milford Haven, south Wales.
For eight hours in a row, she endured the sound of piped music. She gave up and tried again the next day - and waited another eight hours before putting the phone down. The following day, she spent a further four hours on hold before hanging up.
"I was so frustrated and angry I broke down in tears," she said.
