Difficulty to setup an eSIM, no option on setting it, is not even in the cellular network option I do have everything except "add an eSIM"

I have some difficulty to setup an eSIM in IPhone 12 Pro Max - IOS17.3.1, the situation is that the option to set it is not even in the cellular network option I do have everything except "add an eSIM" ( I bought my iPhone in China mainland where I was living ) read support and my carrier have in my country ( Morocco ), I bought an eSIM, my iPhone doesn't give me the possibility to set it up. Try to use airplane mode...and reset the network. Just if it can help using phone *#..# I do not get EID just IMEI and MEID but in "setting" I have SEID