5G still not cancelled with effect from 28 Feb

My 5G Wi-Fi is supposed to have been cancelled with effect from 28 Feb. It now shows that it is cancelling with effect from 31 March, but that's not what I've been told would happen. I was told that it would end 28 February.

My router has also been fetched already so I've not used the internet for the whole of March yet if this issue persists, I'll get debited for a month that I've not used the internet at all.

I've called in numerous times to get this issue resolved and each time I get told that the issue is being escalated, but it never gets sorted out.