Slms is it ok for. Person to submit competition entries under different family members names as long as the peoples names used are ok with it and they are happy for any winnings on their name go to the person submitting. Pls note this competitions are free entry so I understand entering free competitions is ok. Pls correct me if I wrong.
May Allah bless you.
Although depending if competition is shariah compliant, it is permissible to enter the competition under a different name, provided that it is with the permission of the person.
And Allah knows best!