Salary for deceased employee

CCI is so unprofessional my partner passed away in September 2025 a week before pay day, they decided not to release his salary stated they need a letter of authority to discuss anything pertaining his salary, i went and got the letter from Master of High court only for them to say they cannot disclose anything to me because the letter does not have the salary to be paid however they also do not want to give me anything to confirm the salary to be paid, It takes them over 4 days for payroll to respond to a simple request so the entire company does not understand how the letter of authority works? the same letter that they had requested and they still cannot disclose anything such incompetence on such a big entity and to be told this is their first instance a company that has been operating for over 15 years nobody has ever passed away before they got paid? To make matters worse all their email addresses block external emails so you cannot send emails you have to use WhatsApp Really? such unprofessionalism having to send confidential documents on a personal WhatsApp? They do not care one bit from the time i started to inquire about this matter i haven't even received a mere call from someone in HR department to explain what is happening or the process i am getting response that is meaningless from WhatsApp where i have to follow up every time they if i don't say anything they don't. They are not having showing empathy in this whole situation my partner worked his full month his leave days and now we have to fight for his money to be paid?