Standard Bank Shyft - terrible service!

Hugely frustrating experience just trying to get a SWIFT transfer done from Standard Bank Isle of Man to Standard Bank Shyft. After 2 days I received an email from Isle of Man stating that the funds had been returned by Shyft 'Please be advised that your payment made on 28 May 2026 for the sum of GBP ***.** has been returned to us less charges, with no reason provided. We are in the process of obtaining clarification on why these funds were returned and, once we know more, we will contact you'. I called Isle of Man and they cannot say why the funds were returned by Shyft. Then contacted Shyft who say that the funds are still being processed and they need an MT103 from Isle of Man to process further which I as the customer need to ask Isle of Man for!! However, the funds have already been returned to Isle of Man so Shyft's communication was wrong! After going back and forth with Shyft via the only communication methods possible (App and email), I have not received any adequate response on what the issue is?!! I requested a phone call but have heard nothing. Isle of Man checked the transfer details and confirmed that the SWIFT instruction details were correct. This was the first time I have made a transfer between the Standard Bank Isle of Man and Standard Bank Shyft – the same bank! I have asked Shyft why the funds were returned and have not had any reply which means I cannot risk using Shyft again as I don't know what the problem was in the first place!! Shyft indicated that I need to talk to Isle of Man, Isle of Man noted that I need to ask Shyft what the issue is as the same issue might occur again with the next transfer attempt. So as customer, I am being asked to go back and forth between Shyft and Isle of Man. In addition, I have incurred charges for the return of funds by Shyft! The same bank cannot communicate with one another. Why do I as the customer have to beg to find out what the problem is? And I am unable to do a simple transfer? So right now I am stuck! Waiting for someone to get back to me....