Cancelation of 5G sim card

On Monday (30.08.2021) I asked to cancel my 5G sim card. I phoned and asked how long will it take before someone calls me. The person said 24/48 hours... I called every day more than once. I got an email stating why would I like to cancel it, I told them I am not interested in it anymore and since then I didn't get any feedback. Every time when I call, they are saying they are escalating the matter. Yesterday when I called again the lady told me I need to make payment before they can cancel my 5G. I said to her put it on an email saying that I need to pay first before deactivating my sim card. Until today I am still waiting for the email. It is already 5 days later and it's still not deactivated and nobody is getting back to me. The 5G is still on. Please call me on ***