Can't login, lost security key.

So the story is short. I haven't been in s swtor for a while now, and the security key app is no longer available. The device, where my SK-app was installed is long dead by now.

I do have access to an e-mail, which is connected to my acc, I remember the password, and I even  have reseted it, just in case. 

I read on the internet that there that there is (or was) a "lost security key" button, when I attempt to login, with no or with incorrect security key, but there's no such in my case. When I try to login at swtor.com with blank or random security key field, it just says "Failed to login, try another time". When I try to login in a launcher, it says that "Display name, password or security key is incorrect." with no additional buttons or links.
I saw, that I can contact support only in game or by a phone call. It's pretty difficult for my to call in another country, so I created a new account, to write a ticket, only to realize that it's a 'customer support' and I can use it only if I'm an active sub.
To gain a 1 month sub is still cheaper to me, then a 5 minutes call to US, UK, Germany or France, but maybe there's another way?
I just can't believe that in a 2026, If I lost an access to my account, I can only contact support with a phone call.