I signed up for Proton prepaid a while ago and decided the best way to cancel payments was to simply use a masked card with a purchase limit on it. Big mistake. When my paid period ended and a second transaction failed to go through, Proton simply locked my account and all its emails until I prepaid again. I did so, and then I immediately canceled further payments.
I guess the narrative is that the US (the most powerful country in the world) cannot compel El Salvador (the country they are paying) to release the prisoners they sent there.
In other news, up is down