Finally fixed an infinite loop with amazon. I’ve used it for years with a hotmail address as my login, but never received ANY emails from them about orders/dispatch confirmations, but the orders arrived so I wasn’t bothered. I tried then recently to change the registered address from hotmail to gmail but got stuck in an endless loop, with none of the password reset options working. I spent 30mins on the phone to support to no avail working through the options. Finally I remembered to check my hotmail blocked senders list an lo and behold amazon.co.uk was on it…Once I whitelisted this I was able to finally reset my amazon login email over to gmail and everything works again 🙂 Kind of my own fault but still not sure why unblocking amazon.co.uk from my hotmail account suddenly allowed everything to work again….one of the little mysteries in life.