Just excuses, no refund!

I cancelled my membership with them at the end of March 2024. I still had funds in my medical savings due to me, I was advised that it takes 4 months for them to process the refund as they have to give allowance for any outstanding claims. The four months has passed and I was advised that the refund would be processed on 10 August. There is still no refund and when I call their contact centre I am now told they had a technical issue that led to the refunds not being processed. They have no turnaround time and resolving this either.