Hello, I purchased 2 5 pack bottles of your essential oils. The packages indicates that they should last 30 days. It's been 16 days and they are empty. Am I doing something wrong? The scents were also very light so light people couldn't even smell them I'm not satisfied after spending $20 on these. Can you help me? I had always purchased other brands before and thought I would try Air Wick. It's very frustrating when you spend good money on something just to be dissatisfied and the item cannot be returned. Please fix this.