Two- port withdrawal

Very unprofessional. Rude language and they send me two confusing messages. The first one says my bank details could not be verified and I must not contact them directly, which I don't understand because I sent them the Bank confirmation letter. Secondly am told that I must not contact them as they are busy with my application if I do it will delay my application, this sound like a threat to me. So I don't know what is happening with my application. It says a lot about the attitude of senior managers because it looks as if they don't have a plan to address these complaints from public. They staff behave as if they are doing us a favor, we expect and demand a professional service from them, we have contracts and policies that they are expected to fulfill.