You tell us "credit card and paypal account are linked to a spanish bank account" but not the country of your PSN account.
Psnprofiles tells me your account you posted here with is UK.
This should not work despite you saying it did last month.
Pretty sure you recently posted using another id claiming to have previously paid for subscription services using a spanish funding source on a UK account, if it wasn't you it's quite the coincidence.
The other thread, about PS Plus.
https://www.playstation.com/en-gb/get-help/forums/account-and-network.topic.html/not_able_to_purchase-BgjV/
