Any example for interest rate swap involving intermediary or bank charge

No, but it should be more than clear how to deal with bank charges if you follow the logic in the example that I do work through. In addition, you will find several questions in your Revision Kit (Washi being one particular past exam question) and by using the search box on our website you will fine previously replies from me that work through and explain the examiners answer using exactly the same approach that I explain in my lecture.