Can't get my Grandmother's money to pay for slaughtered *** during her funeral

I am so disappointed whereby I won't even recommend anyone to use standard bank. I was assigned by my grandmother to buy her a *** when she passed away, attachment was done in a bank system,my identity card was asked and information was captured, Later in 2020-04-18 my grandmother passed away and I had to go to the bank and asked for the cash for the *** and I was asked to bring so many documents I don't even know where to get them, I'm the elder grandson, during the funeral we had to ask for someone with ***s to help us and will pay later after we get cash from the bank but the bank kept on refusing,now I'm facing a R10000 Dept of which I don't know how to repay,I have a dearth certificate, burial order,1663 and affidavit and the bank have attachment in their system, I really cannot sleep with people knocking on my door every morning and they are now threatening to kill me because they want their *** back, Standard bank has caused a lot of mess to my life If anyone believe in standard bank,wait until until your in my possession. Standard bank account number:***