Astound RCN bill increase

I've had Astound for the last few years, no issue. I've been paying $65-75 for the exact same internet package 400mbps and it was fine.

Well my bill suddenly increased to $106 for December and now January! I politely asked for help from two different reps online and they both said they'll check my account, then no response more than 30 min later. When I tried to type something, it wouldn't send the message!

Has anybody else experienced this? What the fuck. I'm infuriated. They've been steadily increasing my bills by a few dollars, but this jump is insane.

If anybody has other ISP recs, I would appreciate it! I'm in the NW suburbs.