Reciever not recieving robux after a roblox Plus transfer

I've sent 200 robux to my Friend, it took the robux out of my balance

We Both are under 18 (verified age), i have added a parent account which is 18+ verified age, he doesnt have one added, nothing's in his notifications what to do?

Someone else also sent me 200rb and i havent got them nothing is in my notifications also