1. an issue A. Hello
2. disturbed B. tell (somebody)
3. contact C. a problem
4. discuss (with somebody) D. (at) very late time
5. Dear Sir / Madam E. worried
6. take actions (regarding) F. speak (to somebody)
7. cause G. do not want to listen
8. ignore H. get in touch (with)
9. (during) unsociable hours I. do something (about)
10. Yours faithfully J. make
11. inform (somebody) K. Bye