i have difficulties trying to add my phone number to imassage and facetime

To activate iMessage and FaceTime using your Phone number

First, check to know whether you have an SMS plan enabled at least for One SMS*** with your carrier. Contact your Carrier (Cellular Service Provider) the agency that issued the SIM to you

If your iPhone is used with a carrier not found in the wireless carrier articles, make sure you can send and receive international SMS. (One SMS*** Only)

If you can't turn on or sign in to iMessage or FaceTime - Apple ...

*** You may not have an SMS plan enabled by your carrier for the SIM/eSIM that you use on your device. Apple Inc does not provide SMS services.

lol activate number in ios, then go to facetime/message use your number as facetime choise, dont use a one time use number, and be sure u have put in sim-card correct, activate via wifi or mobile data :ON . Then click on imessage - make button green - u can fill if you wanna use appleID or number/both - fill in your number and appleID - then go to messages and activate imessage, go top of settings and log in to your apple id . Restart phone after few minutes , remember facetime/imessage only use if you have wifi or mobile data on. And go to your message app ios- try text someone with ios , if u have activated phone and internet text window/ buttons will be blue / green if u not connected to internet or not activated your phone number . Its do it auto how hard can it beIf you can’t turn on or sign in to iMessage or FaceTime - Apple Support