Vodacom upgrades and shops

I have been with Vodacom for the last 10+ years, paying my monthlies without any failure, i have 10 contracts with Vodacom. I've been under debt review for the last 4 years and still i have paid my account every single month even during lockdown. Now i ask to do a upgrade for one of my numbers but the no one wants to help due to "No Finance" which i think is absurd as they can check my account and what i pay every month. I upgraded a number for my wife last year October or November to iPhone 12 Pro and they helped me to do the upgrade. I think i will start to cancel my contracts with Vodacom and keep the 3 as no one wants to help.