Respond with text changes the country code
I live in Poland, my iPhone 12 mini has local PlusGSM ESIM that is my main number with +48 country code. I also have a physical sim card from Orange Spain (+34) that I don't use at the moment and it is set to "off". When someone calls from a local number and I choose "respond with text" to decline the call, my iPhone adds +33 (France) prefix, instead of +48.
I tried enabling and disabling "dial assist" multitude of times. I changed regions several times. I changed the iMessage region several times. No matter what I do, it adds +33 country code.
Should I just live with it? It seems that many people had a problem like mine and no one really found a solution.
iPhone 12 mini