After your case, they became much more up-to-date regarding notifications. Almost every time I log in, I get some new information. They also updated their ToS so that the card can be removed if it has a negative balance for a long time.
Good to hear that they have learned from their mistake and updated their terms and conditions, as well as giving notifications with each update. It will be helpful for the user who will use their service, and the site will be considered as an authentic service, but earlier it was foggy, and many people lost their cards, which will not happen now as they will receive a notification before going to be deleted.