Terrible experience with Standard Bank

I sent a huge amount of money to my sister's Standard Bank Account from a different bank then they suspended the account for my sister saying they waiting for my bank to confirm the money is coming from the right source, 2 days passed without help I call my bank and they don't kn ow anything about confirming the local payments now standard bank is not making any move to call my bank and we need the money urgently, the stupid part is that my bank should call them what's that nonsense who wants to confirm is not them, if they can't help their customer whats the use of banking with them. Amy sister is sitting there and they telling her about the investigators that are waiting for my bank what's the stupid investigators doing if my bank doesn't know what they talking about and days passed waiting for them. Standard bank is a horrible bank I don't recommend it.