Can't get in contact with an agent

I have been trying to reach an agent for some time now since I haven't been home for some months and I wanted to cancel my service, but the chat feature wasn't working with my browser for some reason, and I wasn't able to reach anyone. I also couldn't call because my phone was incompatible with most sim cards, so my only option was to try and reach you through chat. I then decided to try a different browser and then I noticed my service had been cancelled, so of course I then tried for an agent on this browser, but it was basically impossible for me to speak with an agent, it only kept saying one thing. I'm not sure if I have to send a direct message still or if someone will see this but I really need to speak to someone so I can get my service cancelled because I won't be home for a while.