Claiming the EOSB after signing visa cancellation documents

Hello,

An employee worked in a DMCC company for more than 10 years. He left the country in 2019 without settling the End of Service Benefits. Due to some reasons, the company asked to sign the documents for visa cancellation. He has signed and left the country.

There is no EOSB transaction in his bank statement. Is there any possibility now to get EOSB? Any rule in DMCC to get EOSB?

Please guide me!