Declined Telkom Online Contract Application

So on the 19th of March 2025 I made an online contract application with Telkom and I was preapproved instantly. Receive a reference number, I was told the device will be delivered in the next 5-10 days, fine. Via a SMS I was requested to send documents to their credit department so that they can check affordability and credit profile (latest bank statement, latest payslip and a copy of my ID) . These documents were sent immediately on 19 March 2025. Telkom made two enquiries under my profile and there was no communication or feedback from their side. 10 days past and I decide to contact Telkom (yesterday, 31 March 2025) to find out about the status of my application. The consultant informs me that application was declined, to my shock I asked why and she informs that my expenses are under reported, I am shocked because no one in that credit department contacted me and/or sent a form for me to complete to list all my incomes and expenses and/or asked whether I have another bank account to consolidate the information to make an informed decision. I have a credit score of 697 and all the listed obligations (bond & 1 Store card) which are the only credits I have are up paid with no single missed payment since their inception and Telkom declines a credit contract application of a merely R399 a month. I am shocked and disappointed to say the least!