1-Unfortunately there isn’t any specific number just for foreign students to call.But in an emergency circumstance,student can ask for help from the person in charge (like the instructors in faculties or the officers in dormitories) or they can call Erasmus coordinators.
2-If a student have to go to student affairs it’s better to see one of the Erasmus coordinators first, in case they can’t deal with the officers in there.
3-For school trips,students have to make payment.The fees depend on the contents of the activities but when we consider that they are organized for students we can say they won’t be so high.
4-For now,I’m not so informed about the activities.But as soon as we get news relating to trips and other events we will share it on the ‘activities’ section.
5-We haven’t noticed the foreign students to join us in the forum cuz we still have some points to work out like translating log-in page in English for them and some other issues.After all these things have done we will let them to communicate with us in there.
6-I’m not sure if the city or any districts has a church or any other temples.But I know we don’t have any church in campus.
Thank you for asking your questions in English as a Turkish student

Definitely my answers will help you and all other students.