How get get a refund for auto renewal

I have tried the online form to get a refund for an auto renewal that should have been stopped. It doesn't work. I get the error ReCaptchaCFR has exceeded 1000 characters. I can't get past that. I have tried multiple times with different browsers. I have tried the chat but it times out before anyone answers. I have tried keeping it alive by sending a message every three minutes. that didn't work either. I have tried to get something from the automated chat and it just goes in circles that ends up at the form that doesn't work.

Is there any way to get in contact with Trend Micro? I can't get an email address or a phone number.

Thanks

Hello, 

I apologize if you can't do a refund online. Here's the chat support of Trend Micro to assist you with your refund concern: Chat with Trend Micro Support | Trend Micro Help Center.

I have had a similar problem. I cancelled my subscription prior to the due date yet have still been charged through my credit card as an auto renewal.
Is this just a mistake or something more sinister?

Hello, 
 

Please contact us to check your account if you have been charged or not. Here's the chat support of Trend Micro to assist you with your concern: Chat with Trend Micro Support | Trend Micro Help Center.