Can't receive international SMS
I have a strange issue with receiving SMS messages from numbers abroad. For example, I can send texts to my cousin in the UK, but I do not receive texts from him. However, when I am in the UK I can send and receive to/from his number, no problem. My sister however, who is also on the same network provider as me, doesn't have this problem. We both have iPhones, our cousin has an Android.
I also had the same problem with a friend from Bosnia, I could send but I could not receive.
I have an iPhone 7 and I'm currently on iOS 11.1.1
Anyone else have a similar problem?