FNB Lines Faulty - Cant log *****

I called into the contact centre ***) 3 times now. First two times, from my cell and when I eventually spoke to someone, the call was ended by the agent saying they cant here me. I then used my office line and again was cut because they agent could not hear me. I had used 2 different devices to get through but all calls are cut. Surely the issue is then with the Contact Centres line??? I need to speak to someone about possible *****ulent calls from FNB to myself but how do I log this if I cant even get through?