Specialist agent lied to me and abruptly ended chat interaction

I worked with specialist Tabia on Friday the 12th who worked with a manager to restore my service and issue a payment extension until Friday the 19th. I received a text message confirming this payment due on the 19th and my bill shows the same. Today is 9/17 and my service was just disconnected! I reached out to support, was transferred to specialist Akio who stated my extension was put in until 9/17 which was never disclosed to me in my previous interaction. I asked to speak with a manager because I was lied to about my payment extension and the agent Akio disregarded me. The agent stated no manager was available, sent me a chat ending script and disconnected the chat. So the agent completely disregarded me and my issue then ended the chat abruptly. I will not accept being lied to and will be sure to take this up with corporate. I have screenshots of both conversations with both agents.