I've got my sim card from my university and it is said that I will pay 2,75 for 3 months for Yorn X 10 Gb as I'm an Erasmus exchange student. I've activated my card and fill the form on Yorn X but it didn't get activated saying that the offer is only restricted to only new clients. I'm a new client, too? Now I can not change my tariff to 1GB. I don't want to pay 4,99 every week.