Terrible service and Terrible call center

I have done an upgrade of my contract on the MTN site, it was approved and i was then referred to Mondo to follow up on the device and when it will be delivered

I submitted my application on 06/09/2021 and it was approved on 07/09/2021 Since then i have had to call Mondo 3 times to follow up and was told the second time that i should have feedback after 10 business days i called to follow up today 21/09/2021 and was told there is no stock, when i requested that someone contact me when stock is delivered to advise if the device i ordered has been received i was told that they cannot do that and i will once again need to waste my time and money to follow up on this. Its been 2 weeks and other than when i have called this company i have received no feedback. The last person i spoke to offered no actual information however just offered to have a sales person call me to change my contract again after they have already messed it up. It would be great if someone at this company would take some responsibility for the service they provide their customers