TfL’s unclickable Oysters

Like many people I get an email from TfL each month letting me know my Oyster card will expire soon and I need to go to their website to renew it. If only it was that simple.
It’s a simple email, along the lines of:
“This is a reminder that the season ticket on your Oyster card will expire on 04/10/2019. Please go tooyster.tfl.gov.uk and sign in to your Oyster online account to renew it. You can do this up to 30 days in advance but please allow 30 minutes to process the order before