Standard bank mobile

Hi I recently app**** for a cellphone on standard bank mobile I received an email stating I am approved,few days later I received a call asking to confirm that I'm the correct person and to confirm delivery address,then just silence,then I get an email stating that it was approved in principle and that they need xy and z I sent off what I could,then past Friday I received an SMS saying that my package is on the way,today I called in just to enquire and was told that it's on the way,I then receive another email later in the day stating that again they need more documents,I am very unhappy as I have all the necessary emails proving I was approved!this has turned into a joke and as a standard bank client for a good number of years I find it very unprofessional,I reach out via email and get no response, eventually when they do,my questions are ignored...this is very poor customer treatment and I'm not happy,the communication is terrible, because when I call the call centre they give me no indication of what was sent via email please assist with this matter as I feel this is not dealt with appropriately I was approved not declined..