I Bought a pre-paid sim card for 20 euro from a Vodafone shop in a El Corte Ingles in Seville which included 15GB of data for 1 month. After the month passed I tried to recharge my plan for another month. When I called Vodafone to do so, I discovered that the Vodafone worker who I bought the phone off had entered the sim card in a different name with the different passport number. Therefore I couldn't renew the sim card the normal way. Vodafone then said that I could instead recharge with 15 euros and get 8GB which was a complete lie. Whatever amount of data I did get ran out in 3 days and when I went to a Vodafone store they said I have to pay another 20 euro to get more. Staff were all very rude and slow during this time.