Sorry for my reply. Maybe there should be just normal response from F-Secure.
but I decided to create my dreams... if you want to try do something as check around your steps. Or there can be workarounds for your situations (potentially). Maybe you able to try it too. Or just read my latest words after little addition (after all words).
So.. for first.. what if...
Does you BOX have any of links for register-place? As some of specific URLs or other?
---> Anyway.... previously My F-Secure SAFE page and register-steps was another. Probably troublepoint with this. Instructions can be not related with current situation.
I can to think that there anyway should to work next link-point:
as example: "https://mysafe.f-secure.com/register/box/SSHSH-SSHHS-SHSHS-SHSHS"
When you open this link and add your other information (name, mail, password)... will be created account. And license should be activated.
Potentially account will be already with your license (and maybe with trial time). Such as... I re-check and tried this steps and get three months for five devices by using specific promo-license-key (basic trial should be a month and three devices). So.. this workaround should work. But I check this with promo-license (link a little be different, but there should be same design as my safe-license activated by same steps).
----> But I also able to get button for add license under My Safe Account.
With your words... under page "Payments/Orders" you have just link/words for "buy".
But my experience about additional (under Buy-string with information about trial/valid/active license) place, where have words about "Add license" (as re-activated expired license) with F-Secure SAFE code and button for "type your code".
Button will open Pop-up with forms about License and Campaign name (I think this should be your license key and Safe), but there have description that information should be available under Box.
I able to get situation, when this is will be not available and will be there just "buy"-string... if we goes to second tab (settings/editing information) of My F-Secure Safe and choose option for "Cancel your subscription". Maybe you did this?
If not... maybe there some of browser-troubles. I tried with Windows 10 64bit, Internet Exlplorer 11.
Sorry for my reply.
I decided to re-check what if the link:
Will be with wrong license-key. I create strange additional (not license key).
And when registered.. My F-Secure SAFE Page create prompt with place for add license key or just use trial-time.
I think this is most helpful steps for you (and maybe this steps based on steps, which you created about F-Secure SAFE tutorial).
Just create an account under " https://mysafe.f-secure.com/register/box " link and get option after this to type your license.
If you did same steps and after this create your topic. Sorry. Maybe there indeed can be troubles with browser support?
I HAVE THE SAME PROBLEM? WHYYYY???????
Sorry for my re-ask....
Just.. if you registered under this page - https://mysafe.f-secure.com/register/box
Do you have experience with prompt for subscription-activate?
If not... this is strange. This page (and register-steps) still work (as was with my previous reply under this topic).
And maybe "just certain-string of your subscription" under this URL can be helpful for autohandle it.
And if there not possible to create first/fresh account or another one account; and your "current" account with missing place for "add" subscription after trial-time (or previous license). there probably indeed most helpful will be Support Ticket and with feedback about result of their help.
sorry for my reply.