Andrew Tate will continue to be held in Romania after a court upheld the decision to deny his request for bail.
Both brothers have denied the accusations made against them and applied to be released on bail, but earlier this month a Romanian court rejected the application.
Lawyers for Tate appealed the decision, but it was announced today (29 March) that the court of appeals has chosen to uphold the initial ruling.
As well as their bid for bail being dismissed, the Tate brothers' detention was recently extended until 21 April.
A spokesperson for the Tate brothers told the MailOnline they had been 'rendered speechless' by the decision, especially as the brothers had been given the opportunity for the first time to 'present all legal guarantees that they are not a flight risk'.
They explained: "The court has decided to extend the Tate brothers’ preventative arrest. We have been rendered speechless by the news.
"The interaction with the judge was extremely dynamic and the brothers were offered for the first time the opportunity to present all legal guarantees that they are not a flight risk.
"They are the first ones who want light to be shed on this case. The substantial material damages they have suffered are nothing compared to the moral ones.
"Their image has been irreparably harmed and it will take years to rebuild the reputation, trust and connection with the general public."
Lawyers are set to appeal against that decision to extend the detention, with the court expected to reach a decision on Friday (31 March).
Tate's legal team has argued that it is unnecessary to keep the social media influencer in custody when other options, such as house arrest, could be utilised.
However, judges have argued that Tate is a flight risk, or that he could influence witnesses or evidence if released.
The influencer gained a large following online despite posting controversial opinions and advice to his fans, and his Twitter account has remained active even in the wake of his arrest.
The most recent tweet, which arrived on the same day the court of appeals returned its decision today, showed a bald man looking out of a window alongside the caption: "Escape is possible. I simply close my eyes."