Hi @Taurus22 Taurus22, thank you the reply. So far it is not working for me. My BCP given CLI slowly but not using the 3X CLI formula. It is just random. I am wondering if it will still work for my other card ED but I only has one CLI after several years from $2 to 2.4k (Mar 21). I was rejected again last month (Sept). Probably I apply too early (less than 180/181 days), I am not sure. I will try again when a new statement comes out in few days time. I got nothing to loose anyway. 
I will let them reject me monthly for every CLI request while spending most of my monthly expenses and pif on the same card. Maybe somebody would look into it. Again, thank you for the information.