I am unable to receive calls from UK. They can not call my landline. They are receiving a COA 0163 error message saying they are not able to call. TPG complaints are not able to fix it so can someone else help me? ... View more

I am unable to receive calls from UK. They can not call my landline. They are receiving a COA0163 error message saying they are not able to call. TPG complaints are not able to fix it so can someone else help me?   ... View more