MEGHAN Markle's sister today said her family will snub her birthday as she told the Duchess: "Enjoy the guilt".

Seething Samantha Markle hit out at her half-sister on her 37th birthday - her first as a member of the Royal Family.

Samantha said the former Suits actress will not receive any cards, calls or text messages from her relatives across the pond today - not even from her own dad, Thomas Markle.

It comes after the 53-year-old accused Meghan of ignoring Thomas on his own birthday last month.

Samantha told her sister, via Star Online: Send Dad a birthday card...oh that's right you didn't care - enjoy the guilt.

“Send Dad a birthday card… be a humanitarian… oh wait that’s too difficult? Of course it is.”

She added: "“I don’t really feel like it’s all about her, I think the priority should be acknowledging the birthday she ignored of our dad’s."

Earlier today, Samantha spilled her anger on social media, where she again told Meghan to send Thomas a "belated card".

In a vile Tweet she wrote: "Happy Birthday Meg! It would be so lovely and appropriate of you to send DAD a BELATED birthday card for his July 18 th [birthday cake emoji] @KensingtonRoyal Cheers".

Samantha's passive aggressive remark about their father comes just a day after she called the Duchess Cruella De Vil in another Twitter rant.

She shared an article that claimed the Duke and Duchess of Sussex were "taking a step away from the media spotlight", writing: "OK so Cruella de Vil is retreating LOL.

"Let me know how that works out for you."

The American later cryptically added: "There are smoke and mirrors you try to hide things with, but you can’t hide from what you see in the mirror."

Meghan's estranged half-sister hasn't held back from commenting on Meghan's new life - despite previously admitting they hadn't spoken in more than a decade.

It comes as tensions in Meghan's family have continued to mount, with dad Thomas Markle recently revealing he hadn't spoken to his daughter for months.

The 74-year-old, who lives in Mexico, said the royals were freezing him out of his daughter’s life over his staged paparazzi pictures and controversial interview with Good Morning Britain.

The recluse even suggested his health was in peril, and that he wanted to reconnect with his daughter before his death.

Samantha Markle has previously urged her sister to contact their father, saying the Duchess would be "responsible" if their father died.

She took aim at Meghan after she visited the Nelson Mandela centenary exhibition in London, saying: "How about you pay tribute to your own father?! Enough is enough."

She added: "If our father dies, it's on you Meg."

Friends have since said the chances of Meghan's family rift healing is "zero".

A source close to Meghan told the MailOnline that a reconciliation is no longer on the cards - and that the pair's issues stretch back years.

They said: "There's no chance right now - he's been a complete embarrassment."