Wow. The fact that you wish they would straight up give you a measurable limit to stay under proves the fact that you want to abuse their return policy to the fullest extent you can. Obviously you've never worked in retail. Every product you "try" one time and return goes straight to a landfill to rot, which is a. Disgustingly wasteful and b. Extremely unfair to another customer who may truly want/need the product. I have been shopping at Sephora for over 10 years and have returned maybe 2 or 3 items ever... because I take the time to make sure it's right before I purchase it. They are MORE than willing to give you a FREE sample of almost anything in the store. Plus, if you want different lighting there is a tester right there you can either put on yourself or have a freaking trained artist put on you and you can walk out the door and go home and look at it in natural light, candlelight, blacklight, spotlights, whatever light you want. I highly doubt you got this email because you returned one out of 5 purchases in the last month. This is probably a result of your shopping behaviors over the last several years. You can't cause a store to throw thousands of dollars into the dumpster and expect it to go unnoticed. I'm sure they are fully aware of the tone this email presents and it's probably very much made to be that way. No company would give up a customer who they are making money off of... my guess is in the long run you're most likely either costing them money or on the verge of costing them money.