Hello Virgin,
Have you any idea the moment I got switched from EE to Vodafone why people cannot hear me speak when they call me on my new Xiaomi 10T Lite 5G phone?
If I call them it is fine, if I put another SIM in my unlocked phone it is fine. My phone supports ALL 4G/5G UK frequency bands. There is no LTE calling option made available (though phone does support it!)
I have the purple SIM which is only about 6 months old and never had issue on EE.
I also have a "ghosted" notification about voicemail from EE on the phone. When I ring voicemail, it says no messages.
Wi-Fi calling also does not show as an option despite phone supporting it.
As a side note, I went from happy 60-70mbps data speeds to 2-8mbps on Vodafone and 3 bars of signal to one bar of 4G at best and often none (no 5G in my area yet). Seriously not impressed with this Voda service now.