John Berry, 70, said he was startled when he was told by the worker at a sorting office that he could not pick up the package on behalf of his new-born granddaughter, Amber.
The retired man went to the depot in Cheltenham, Glos, after a postman dropped a card through his letter box to say a package was waiting for the infant.
But when he arrived he was told that only Amber could sign for it because her name was on the parcel.
“It was absolutely ridiculous,” said Mr. Berry, who was frustrated because I had many forms of identification on me, including my driving license, which proved I lived at the address on the parcel.
“He still wouldn’t allow me to take the package claiming that Amber needed to sign for it herself. I told him she was a baby but he kept persisting.”
Mr. Berry’s wife, Hazel, 65, a civil servant, said that when she complained, Royal Mail cited data protection law. “This country has gone stupid, there is red tape everywhere," she said.