ATHENS, Jan 8 (Reuters) - Wall Street bank JP Morgan

has filed two lawsuits over its investment in fintech

Viva Wallet, the latest twist in a legal dispute between the two

sides over how to value the Greek business.

A source with knowledge of the matter told Reuters that JP

Morgan filed a lawsuit in Greece on Jan. 2 seeking 916 million

euros ($944 million) over allegations that Viva's CEO, Haris

Karonis, and three other executives "deprived JPMorgan ( JPM ) of the

value of its 2022 investment in Viva through unlawful actions

from March 2022 onwards".

In an emailed statement, Karonis confirmed the two lawsuits

and denounced them as an act of intimidation. He did not give

details of either suit.

"These proceedings are simply the latest step in JPM's

concerted effort to depreciate Viva's value, to preclude it from

expanding in the United States and elsewhere, and intimidate its

directors," the statement said.

The U.S. bank bought a 48.5% stake in Viva Wallet, which is

used by businesses in southern Europe, for about $800 million in

2022. Werealize (WRL) owns 51.49%.

Under the terms of the deal, WRL loses its right to reject

any JP Morgan offer to take control of Viva if the business is

valued at below 5 billion euros ($5.4 billion) by July 30, 2025.

Both sides claimed success in June when a London judge

issued a decision on how the business should be valued, after

they sued each other on the valuation of the joint business.

JP Morgan also filed a case in UK this week against

Werealize.com, which claims it breached shareholder agreements

by causing Viva not to respect the obligation to obtain

JPMorgan's ( JPM ) consent before taking certain specified significant

business actions, the source said.

WRL did not immediately respond to a request for comment.