Holding & Subsidiary

Your first  wrong entry  will be 

Telephone Expense ( subsidiary company) A/c    Dr 

To Bank                                                         A/c   Cr 

(  Being  telephone exp  paid ) 

Your  correct 2 nd  entry  will be 

Telephone  Expense  (  Holding  company )  A/c  Dr 

To  Telephone Expense   (  Subsidiary company)  A/c  Cr 

( Being  earlier entry corrected  by debiting  T.E. to Holding company .