How to fund my nephew's game account?

My nephew is a fan of this mobile game and I promised him for Christmas that I would buy him a hero.
I have never played this game because I have been busy with work.
However, I have searched for answers online and here are some of them:

• Buy an Amazon gift card for him so that he can buy Amazon coins to buy "diamonds" from MLBB. With diamonds, he can buy his favorite hero.
• Go to the website to fund the account directly. Is Codashop reliable? After sending funds to it, will there be a delay in my nephew's account being funded?

Estaba en el centro de Cali matando tiempo y me encontré con https://plinko.com.co navegando por una página de deportes. Nunca había probado algo como Plinko, pero decidí darle una oportunidad. Lo que me gustó fue que es rápido, no necesitas esperar rondas largas ni seguir cartas o líneas. Jugué con apuestas bajas y, sorprendentemente, una ficha cayó justo en uno de los multiplicadores altos. Fue una buena sorpresa para un día cualquiera.