Cannot phone our own branch!

On 15 June we went to the aforementioned bank with a simple query,which could have been resolved on the phone. Instead,since we are unable to phone our branch directly, we asked to see the Manager. Ms Dollie was most charming and came to see us very soon after our request and she agreed that it was ridiculous that one cannot phone ones own branch. In fact she used the example of someone leaving keys behind at the bank and that this person would have to phone the call centre number and hold on for a long time. She was most kind and gave us her own line: *** and the number of Ms Ebrahim: ***. We phoned Ms Dollie on her direct no today several times and it just rang -no answering service. We also phoned Ms Ebrahim. The response we got on several occasions was that this no. was no longer in use and we should use the Call Centre no: ***. Ms Dollie had told us that we could phone this call centre number and ask directly for her, which we tried today. The woman at the call centre did her best to try and get hold of Ms Dollie, but had the same response, just ringing. She did not have Ms Ebrahim's no, which is not surprising as it's no longer in use! What now?!