Payment details does not save and redirects to homepage.

Hi guys, trying to subscribe to the game (am an old preferred player) results in me being redirected back to the website homepage each time after trying to add a payment method, either via credit card or PayPal. Some of the buttons on the site also feels unresponsive, I have to click numerous time before I can select the credit card option radio button. My payment methods also never get saved. The whole experience just feels glitchy. I get no error messages.