Slightly curious experience with Toggle. I'm registered in the UK and have permanent US and Swiss numbers by paying £5 a year.

I added Spain yesterday. The confirmation was almost immediate. However, the text message said that calls cost 9p a minute. Checking the website shows Spain/Spain as 9p/minute to mobiles but 3p per minute to landlines (and Spain/UK calls as 3p/minute to both).

I'll assume the website is correct unless I find out differently.