GEPF lets you down during the most difficult time for death benefit

My mother, a GEPF member, passed away on 17 March 2025. On 26 April 2025 I submitted all the paperwork, as per required for her funeral benefit claim. Again on 07/04/2025, 11/04/2024, 15/04/2025 and 16/04/2025 i submitted and requested any acknowledgment of receipt or feedback, but no reply or delivery from GEPF. I have called the call centre number, 0800 117669 more than 20 times but the number is faulty. There are NO ALTERNATIVE number to call. Unfortunately I cannot go into GEPF myself. I am highly disappointed as my mother has passed on today a month exactly and I am cannot finalize her arrangements due to GEPF. I am disgusted by the service or lack thereof I am receiving. I cant even enter a business email below for Hello Peter as they will not reply. I have tried 5 different GEPF emails, as per their website, but to no avail.