According to this article (the link points to a text in Spanish).

I don’t know the extent of the craziness (will this affect mobile networks or all kinds of Internet connections?), but the big telecommunications companies in Spain have been pressing the government for long time because they want a slice of cake from providers’ benefits (read: Google, Facebook, Tuenti -Spanish Facebook alike service-, etc).

I don’t know if we’re heading towards the apocalyptic scenario where one has to choose between different packages, like it’s satirically shown in the following image from Francesco Lapenta.

That would be a double shame, because Internet access in Spain isn’t cheap at all.

I’m not sure if this is a problem of current government or if it would be the same with a different party, because there are very powerful lobbies in Spain, and they’re not tied to any specific ideology (just money!).

Update: a post in Barrapunto (Spanish version of Slashdot) says that protecting net neutrality was in PSOE’s agenda in past elections (PDF, check page 131). They won the elections, so forget the promises.