I have went through the write ups guideline (1)/ too but still want to clear on mail (2)/ com munication for topic confirmation. (3)/ No Error (4)

Answer

1

Explanation

Structure of sentence in Present Perfect :
Subject + has/have + `V_3`
Hence, I have gone (V.) through the write-up guide lines is the right usage. Here, I have gone through the guidelines for write - ups is also a correct usage.