Accredited language courses

Hi.

Me and my girlfriend and moving over at the end of May. 

We are coming over on student visas as we wanted to take on a Spanish language course. 

We were advised to apply for a school on Tenerife as they were said to be the closest and do some remote learning. But we couldn't find anything about learning remotely on any Tenerife school websites.

My question is, does anybody know or can recommend some Spanish schools anywhere at all with accredited courses that we can definitely attend remotely from Lanzarote?

Might be a long shot but any help is appreciated, thanks