Cardi B believes her former manager stole money from her.

The 25-year-old rapper has been hit by a $10 million lawsuit by Shaft - whose real name is Klenord Raphael - for breach of contract as he claimed she had an obligation to keep him on because he drove her to success, but she's said to believe she was right to drop him because of dishonest business practises.

Sources told TMZ Cardi confronted Shaft on Super Bowl weekend and claimed he was making it appear she was making less money than she really was so he could pocket the difference.

If the 'Bodak Yellow' hitmaker landed a $100,000 job, Shaft allegedly told her it was worth $50,000 and kept the difference.

And Cardi's fiance Offset was said to have been the driving force to sack Shaft after he learned the 'Bartier Cardi' singer - who is pregnant - was paying him a 20% manager's fee, way more than the norm.

Sources close to the executive told the website Shaft acknowledges he charged a high fee, but he used a lot of the money to pay writers and producers who worked on her music.

And the manager believed the Migos rapper wanted him sack so he could assume control of Cardi and her career.

In his lawsuit, Shaft admitted Cardi accused him of stealing from her and told Offset and her circle, and included an explicit text he received from the Migos star.

The threatening message, in which Offset calls Shaft a ''snake'', read: ''[U] better stop play acting like u don't know u taking her sh** from her u a snake. U can't hide from me N**** and u not bout to play my WIFE.''

Cardi's ex-employee claims that the star's publicist played a part in turning her against him.

Shaft is said to be ''confident'' that he will win the legal battle, in which he is seeking $10 million in damages, after the 'Finesse' hitmaker cut ties with him once she found fame and sold millions of records.