SARAH Everard's murderer Wayne Couzens has complained to prison bosses after he was reportedly denied a birthday present from his mum.
Met Police cop Couzens is serving a whole life order for abducting, raping and murdering Everard in March 2021.
But the pathetic killer has reportedly launched a formal complaint after HMP Frankland stopped him receiving a parcel for his 50th birthday, MailOnline reported.
Couzens moaned that he could now seek compensation for his family as his mother wouldn't be able to get a refund on the clothes, books, and headphones she sent.
The disgraced former cop reportedly was told that he wasn't being singled out, but that no prisoners are allowed packages from home.
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Couzens then made a complaint to the Prisons Ombudsman as he had received a parcel when he had arrived at prison - and his family are now left out of pocket.
What Couzens and his family hadn't understood was that he was allowed a one-off parcel upon his imprisonment in Frankland.
A source told MailOnline: "It might seem incredible after his case horrified the country - how he took advantage of his police status to target, deceive, rape and murder poor Sarah - that Wayne Couzens was doing this.
"But that's exactly what happened - just a year on from getting his life term he was writing busybody letters of complaint about not getting a birthday present.'
The source added: "His complaint was based on his parents, how it had inconvenienced them and potentially left them out of pocket. But it was absolutely dripping with self-pity."
The source said that Couzens was "unbelievably" asking for special privileges over other prisoners by saying that the parcel should reach him.
When Couzens went to sign for the parcel in prison he was reportedly told he wasn't allowed the package.
He claimed that the notice clarifying parcel rules had been issued 10 months before he had arrived from HMP Belmarsh.
Couzens turned 50 on December 20, 2022, after he had already spent a year in HMP Frankland.
He pleaded guilty to the murder of Sarah in July 2021, after having previously pleaded guilty to her kidnapping and rape.
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Everard had vanished on March 3, 2021, after leaving a friend's house in Clapham, South London.
She parted ways with her friend at around 9pm and began walking back to her home in Brixton.
Couzens used his warrant card to lure Sarah into his car.
He claimed he was on a "Covid patrol" and used lockdown laws to stage her false arrest before driving her over 80 miles from London to Kent.
A huge police search was launched to try and find her and on March 9 detectives investigating Sarah's disappearance charged a serving Met Police officer in his 40s - later identified as Couzens.
Sarah's body was then discovered in a woodland in Ashford, Kent, a week after she disappeared.
Post-mortem results revealed that Sarah died from compression to the neck and that she had been raped.
In the September of that year he was given a full life sentence and was told that he would die in prison.
Just 61 criminals in the UK have had this sentence imposed and Couzens is the first British cop to ever receive it.
Lord Justice Fulford explained at the time that the rare sentencing was given due to the fact Couzens had abused his position as a police officer.
The judge said: "Sarah Everard was a wholly blameless victim of a grotesquely executed series of circumstances that culminated in her death and the disposal of her body. She was simply walking home.”
He added that Couzens carried out "warped, selfish and brutal offending that was both sexual and homicidal" and said "Sarah's state of mind, and what she had to endure would have been as bleak and agonising as it is possible to imagine."
The Prison Ombudsman and Ministry of Justice were approached for comment.
