"Too many activations" NOT TRUE, please help

How can I activate Indesign? I get a too-many-activations error, but there is no way to deactivate the copy that I am replacing. The Mac it was on went down, and the hard drive is not readable. I installed from the original disc and put in the serial# as requested. There is no option in the app to contact Adobe. When I use the website, I get an endless loop of click-around that ends at contact-support. Click that and it sends me back to the start. This should be a simple phone call with an easy to find number. I eventually found, by accident, the chat feature, but it was and is, unavailable. Please offer some real-world advice on how to get this fixed. I don't really want to go back to Quark...activation