In August I called V...

In August I called Vodacom customer care for network unlock and I was told that I can do that after a year then I was given the ussd code and the phone I wanted to unlock completed year recently then I called customer care on the 04/11/2024 as ussd code gave me error message I was referred to branch then when I arrived at the branch they said it is not possible and so I am confused customer care service say this and the branch says something I want clarification