MTN HORRIBLE SERVICE

I did an online upgrade on my contract on 28/10/2024 and did not get the delivery for the device.On 08/11/2024 I complained on one of MTN's facebook post and as asked to DM them.I DM'd them on the 8th of November ,I gave them all my details and I was told that they have escalated the issue and I should wait to get a call from them to finalise the application. I was told to wait for 8 working hours.On 11/11/2024 I followed up and I informed them that I have not received the promised call , I was told the the query has been escalated again and I should wait for a call. On 13/11/2024 I followed up again and I was told the same story.This morning I followed up again and they have now decided to ignore my text.I am really disappointed with MTN