Leslie Simpson of Teece Place complained to the Goulburn Post to try to get a fair go with Telstra after they cut off his landline without prior notification on Sunday.

Mr Simpson said he was "very disappointed" with the company as a result of his experience.

He said he noticed his home telephone was cut off when he went to make a call at 11am on Sunday and there was no dial tone.

He checked his landline again at 2pm and again there was no dial tone or any service.

Using his mobile, he rang Telstra's customer service line, who advised his service had been cut off until August 20 as NBN was being installed in his street.

"This is no way to deal with people. It is rubbish," Mr Simpson said.

Mr Simpson says he is a priority customer because of his regular dialysis treatment, as well as the need to stay in touch with an elderly relative on a daily basis.

After the Goulburn Post's enquiries, Telstra responded by contacting Mr Simpson and setting up a diversion from his landline to his mobile until they could fix his home phone service.

"This is an individual issue caused by a mistake at our end, for which we apologise," a Telstra spokesperson said.

"Mr Simpson has been set up with a call diversion service and we are working to restore his home service. We wish to apologise to Mr Simpson for the inconvenience we have caused.

"This was a mistake on our part caused by an order processing error.

"We have spoken with Mr Simpson and are working to restore his fixed line service as soon as possible."