In Bulgaria You must pay back street tax within the border (close to €5 for seven times). You're going to get a Unique sticker that you've got to place on your automobile. There won't be any toll stations on Bulgarian roads. Временен Татуировъчен Стикер с Флаг на България - Водоустойчив, https://bulgaria64296.topbloghub.com/35530343/what-does-bulgaria-mean