Online reviews are meaningless. Don't book a cruise (or not) because of any one review.
More info why: https://www.royalcaribbeanblog.com/cruise-ship-online-reviews
What's the purpose of what you're asking? What I mean is, having your Azamara cruise number has no bearing on your Crown and Anchor or Captain's Club status. Points don't cross over like that.
So I'm trying to understand what you're angling at, before offering a suggestion.
I use Chrome.
First, try incognito mode. Also try disabling antivirus.
If that doesn't work, try using the web browser on your phone.
My suspicion is some add-on or third party tool is interfering
My understanding is you make the changes and incur whatever charges you get. Then you keep a receipt and email it to Royal for reimbursement (email address should be in letter you got delivered to your cabin).
You could ask Guest Services onboard to confirm
I booked a bunch of things on different sailings via the website. No issues at all.
If someone is running into a problem with actually checking out, I'd try a different web browser before wasting time calling in. Reason being browser add-ons (especially anti-virus) can prevent it from working
What is going on with Royal customer service line? I was holding for 3 hours today and nobody answer. I try again now and it is 2 :49 min wait? With prices this days they can afford to have customer service?
https://www.royalcaribbeanblog.com/2022/10/18/the-ultimate-guide-the-royal-caribbean-cruise-planner-site
Step-by-step instructions for the section "How do I cancel and rebook on the Cruise Planner website?"