Terrible Service from Axxess

Just want to share my experience with my ISP. I am a client of Axxess and I have raised this issue with the Axxess support email address and Axxess accounts emails and to date I still don't know if there is a complaints or escalation channel to use because my question just gets ignored. This is horrible customer service. I have been requesting my invoice for weeks now and still nothing. Every other month I have to request this invoice after making a fuss. This time i have not received it. Then I get an SMS stating there is no feedback on your query we going to close the ticket. I responded stating, how could you close the ticket. I am not a happy client.