How to claim money back from a partner after separation

Good afternoon,

I am writing from Italy. Before going to court, I would like to know, according to UAE's laws, if I'm entitled to claim my money against my former Bangladeshi partner.

I will sum up the situation briefly:

I and my Bangladeshi partner opened on 23rd April 2019 a fifty-fifty trading company in Ajman FreeZone. Due to Covid in June 2020, we decided to separate.

Meantime in July, we received an order from a customer with a shipment date in November. After order, proforma invoice, adjustment quantity, etc, on 1th of September, we received a definitive LC at sight from the customer.

On the 14th of September, I signed in favor of my partner and left him all my 50% shares for free. I want to know if I'm entitled to ask for my part of the money because I brought the customer and my former partner doesn't want to pay.

Please note that I signed a transfer share form in Ajman FreeZone offices, but nobody wants to give me a copy.

Many thanks for helping!