English Defence League founder Tommy Robinson has been banned from the online payment platform PayPal.
The 35-year-old said he had been using the platform to collect donations to fight his legal battles, and branded the ban as "fascism".
Mr Robinson said PayPal had told him he did not fit within its user guidelines, and would not be able to use the platform again.
The company said it does not comment on individual accounts but added in a statement: "We do not allow PayPal services to be used to promote hate, violence, or other forms of intolerance that is discriminatory.
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"We do not take decisions like these lightly, and we work hard to be rigorous and fair-minded when reviewing PayPal accounts."
The move comes after online petitions, demanding the firm stop processing payments for the activist, gathered thousands of signatures.
'Protecting principles of tolerance, diversity and respect'
Mr Robinson claimed that "a lot" of money in the account had been frozen for 180 days.
PayPal said: "Striking the necessary balance between upholding free expression and open dialogue and protecting principles of tolerance, diversity and respect for all people is a challenge that many companies are grappling with today.
"We work hard to achieve the right balance and to ensure that our decisions are values-driven and not political."