Can't verify my email

I'm trying to update the email address on my account but the 'Verify Your Email' link that comes through takes me to a sign in page and there's no option to verify. If I try to sign in it just says you haven't verified your email yet. After reading some other forum posts I thought it might just time out very quickly but I clicked the link within 60 seconds of it coming through and it still doesn't work. I've also tried using various browsers, clearing my cache history etc but stuck in this cycle of not being able to verify my email. Please help!