Missing Funds to no avail

I made a transfer from an international account to Discovery Bank in January, that was subsequently rejected by Discovery Bank, and the money is now nowhere to been seen. No matter who I talk to at Discovery Bank, noone seems to know where my money is or how to locate it and I have been waiting for this cash for 2 months now. The service, though polite and kind, is frankly quite useless when it comes to explaining why certain things are happening and I have just been left to sit without a rather substantial amount of money that has somehow been lost to the void. It's honestly quite shocking.