How do I get in contact with EA with no live chat option?

EA live chat support was telling me that The Sims Medieval was not linked to my account despite my having purchased it in 2015. They requested an invoice for a purchase I made a decade ago as "proof", which I've finally found. However, they seem to have locked my ability to use the live chat function and there is seemingly no way to contact them via phone or email. How in the world do I contact this company to regain access to a game I bought and paid for???