wrong magsafe board damage

Dear Sir thanks for your replies.

As I mentioned in my previous question that after wrong replacement of Magsafe board my macbook worked for few days but lately again the charging issue arose. It seems as the macbook worked for few days I believ Logicboard is allright where as Magsafe board has defunct.

Now my question is wat is your opinion about my belief(logic board or magsafe)

I will carry my MACBOOK to repair centre tomorrow but before that I want to know wat could be the consequences as they are responsible for it.

Please help me