All I can say is dont do this (although this is for one account not two):

Account A - Refers accounts B, C, D

LOL

The only reason I did this is so I dont ALWAYS have to have pay for my team and still benefit from the free levels.

When you have 3 accounts tied to 1, you get so many free levels which means you can grant all the levels up to lvl60 for 1 account.

Obviously the most efficient way is this:
Account A, refers B,
B refers C
C refers D

And then you power lvl account D's character and just daisy-chain the levels for each account.

Hopefully thats easier to understand.