Why my phone number not adding on my account?

[Maruf_jh]

Why I can't add my new phone number in my account?.. it showing like " you are entering a invalid number" , I tried more than 20+. With country code, my number, and other.. what should I do now?.. how can I add my number perfectly, please anyone tell🥲

[kernowlass]

@Maruf_jh 

Are you adding a mobile phone number or landline?

How many numbers do you already have on your account?

What country are you in?

[Adaofong]

In Sweden.