Vodacom /iPhone device factory fault

Good day, I lost an iPhone on the 19th of November and claimed a new iPhone 13 which i received same day, i was happy and applauded vodacom for their speedy claim process. The new iPhone 13 had a very obvious Out of Box failure as it was freezing when i was using it and returned it on the 7th of the successful claim, which was Thursday the 25th of November 2021. I have been waiting on vodacom to give me feedback regarding the failure, i have been out of a phone the whole 11 days and there's no one who gives feedback, until i decide to call yhe store for some feedback. Ita frustrating spending so many days without a cellphone in this day and age. I am frustrated. I know for a fact that iPhone has a challenge with stock and am forsee a problem should they decide to give me a store credit and getting a new iPhone might not happen in 2021. That's a whole festive season without a phone. Can someone please assist