Poor Customer Service, Unfair treatment

On the 20th January I made an online application for the double deal of REDMI 15c that goes for R370, I spoke to a consultant and she said I only qualify for if a take a higher deal that was R500 something, I told her I will not afford it. I contacted Vodacom on X and explained my story, the consultant I spoke to said I only qualify for 1 device and not 2. I told him that I need 2 but not with the high instalment I was offered.

He told me that he will send the application to be reviewed, I must send my 3 months bank statement and I did, he later responded that that application has been declined because I have a negative review on the bureau, I asked him which account is affecting me because my bureau is clean and I have 2 accounts that are not in arrears and not behind with any instalment. He did not respond, I texted him and said I will settle for the 1 device and said the response is still the same I am rejected.

I just need to know which one is correct. I only qualify for a higher instalment, or I have a negative report on the bureau?