Don't complain about service as there isn't any

I over paid an account by R70,000 via EFT. My banker told me that it could NOT be reversed. The supplier Lake, Smit & Partners would NOT refund me. After fighting with Lake, Smit. & Partners for 2 weeks my banker then told me that they COULD request a reversal from the other bank which was Standard Bank. Another 2 weeks have passed and I am still waiting for my money to be paid back. Meanwhile, I am paying overdraft rates on my account.<br> <br> 1. Why could Lake, Smit & Partners not just have made a refund once they saw the amount cleared in their bank account?<br> 2. How can my own banker give me incorrect advice which delayed the process by 2 weeks?<br> 3. Why have they still not done the reversal?