Hi
Ok with the electricity company, Iberdrola call 0034 901 20 20 20 and say 'Ingles' as soon as they pick up. The team are very good and helpful. Make sure they don't take your electricity meter out though as this will cost you in the future to receive electricity again.
Aguagest Levante call 0034 902 250 270. I am sure they can put a stop to your water supply immediately if you don't require it.
I think you will still receive bills though, particularly for Iberdrola as you are renting their equipment.
Hope this info. is helpful to you and you sort it out soon.
Regards