I'm glad that Moderator Kim is helping the OP with this issue; I typically have had no problems with returning multiple items to the same address in the same package and only having the Q label fee deducted once.
However, the items the OP lists as being sent back together seem odd to me—based on my experience, I would guess that items like shoes or a coat or blanket (depending on the size, of course) would not qualify for the $6.95 label like the blouse would, and I'm not sure they'd all be headed to the same destination for return processing. For example, when I recently returned a jacket, it had the $10.95 label because it was quite heavy and bulky, and I'm fairly sure the shoes I returned about a year ago had the $8.95 label, again due to the weight of the item. Perhaps the problem encountered by the OP is due to the types and weights of the return items, not the return label and process (though I definitely agree that there are often issues with them).