I still don't understand this purchase limit. I really believe it depends on the client's profile, what type of items they purchased, how close together the purchases were and what they returned. Because if you're up to 11 purchases with 5 returns due obvious to quality issues, there shouldn't be a problem with further purchases for this year. However 9 returns out of 11 kept items is a lot and I suspect this is the main reason for the restriction. I would ask you SA to specify the exact reasons so you're aware for next time.
Edit: Congrats on the scarf! Clearly LV are not consistent with their policy because after being told you can't buy for 3 months miraculously a scarf is now allowed!