I am 23 years and we live together so no prove of sendind money to me but his residence number is at the back of mine residence permit.I submitted both my fathers I'd and my brothers I.d since they are both EEA nationals.we will be going together so I did not show any tenancy agreement but gave my junior brother house address in the UK. Supporting documents I sent.. My fathers I.D My brothers I.D House contract showing my name and my brothers plus my dad. Bank book of my fathers transaction and monthly pay. Spanish residence I.d show the same address with my dad. My fathers passport copy with mine. Pay slips of my father four months. I did not include accommodation in the UK sinse my dad will be going with me. My dad niho letter and number because he went to the UK and applied for it and came back.
EEA family permit is what it is called in the UK. In Schengen countries it's a little different.
For Spain you would have to show that you're dependent on them.