"That time my CLB was 7 (L-6.5, W-6.5,R-8,S-8). I appeared for IELTS again n my CLB raised to 8 (L-7.5,W-6.5,R-6.5,S-7)."
Hi, it is indeed confusing, and I'm not sure how the overall CLB 8 was awarded.
Although the grade of the Listening part of your exam increased from 6.5 to 7.5...