Urgent Refund due

I have been insured since 2013 with King price and Standard Bank VAF apparently did not see on their system that i have insurance. For 2 months Standard Bank debited R1536 from my bank account. I queried same and Standard bank did advise they did not see i have insurance so they debited my account for Standard Bank insurance. I sent though proof that i am insured, the same document i have sent many times to Standard Bank as i travel to Eswatini alot of times. Standard Bank will not provide me with a cross border letter of i am not insured. So i need to provide same to Standard Bank in order for me to get cross boarder letter. I am now waiting for more than 10 days for my refund to be paid back to me. My request is to please urgently refund me as i urgently need these funds back into my account.