Posted: Thu Mar 26, 2020 6:18am
Apart from the not inconsiderable problem of the phone shops being shut to buy a SIM requires at the very least ID and for one which can topped up online (I'm assuming you're looking for something longer lived than 30 days) bank A/C details which, and I mean no offence, however charitably minded I think few will be willing to commit to for a complete stranger.
Perhaps if you said why it is you need a Spanish number somebody might be able to offer an alternative solution.
It occurred to me that a Skype number might do tbe job but it seems that Spain is not amongst the country options available with that.