Upgrades done even after notice of customer declining the quotes.

I was contacted by someone who explained how they can change two data lines so that they are cheaper than the current rate for more data as the rates are increasing. I asked the lady if I decide to do this, will I still be able to do device upgrades on these two lines, she said yes. I informed her to rather leave it. On 28 Feb 2024 I received the two quotes for these sim only upgrades per email and immediately send an email back including the quotes where as I decline the quotes. They went ahead with the two upgrades. I have phoned the upgrade call centre, since beginning of March 2024 and was told one of the team will contact me back within 48hours. I have had to phone a few more times, needless to say, till today no one has contacted me and I am still stuck with upgrades that was un approved. In my opinion this is *****. I have been a loyal customer in excess of 20 years. This is the worst service every as I have to look at a disappointed daughter waiting on her device. Shame on you.