Telkom Mobile declined phone contract application for no valid reason

This is in regards to Telkom Mobile. After numerous attempts to source the phone (with the contract), I was wanting, at local Telkom Mobile shops, and being told that stock would arrive but never did, I contacted them at their call centre. I was told the phone could be ordered, and all my details were conveyed to them. This morning I received an SMS saying my order has been declined during credit vetting. Upon calling Telkom I was told an independent company does the credit vetting, and Telkom can not tell me why I was declined, and I am not able to speak to a manager/ any other person in regards to this. This makes zero sense. My credit rating is virtually perfect, I have a stable income etc etc. Every other company wants my business. I am highly disappointed and do not understand! I know of someone else who had the identical response, and also this person has an excellent credit rating. Telkom Mobile obviously does not want business.