Nonsense Mondo customer service

On the 27th of February 2023, I did an upgrade on my MTN contract via Mondo customer service, and I'm very pleased to say that I have received nothing but **** nonsense service from Mondo. I was told that the application will take 5-7days, and my cellphone will be delivered to my house. It's 23 days now, no communication, no cellphone and no decency to explain or even update me about my application. Every week twice a week, I will be calling them to check what is going on, what annoys the most is that, the application has been approved. I would like Mondo to deliver my cellphone to my house before end of business on the 24th March 2023. My contact details are ***, my email is ***, and my ID is ***.