"The next day, I returned to the shop, but the owner, who was at the front, told me that she couldn't process an exchange or return. Frustrated, I asked to buy the rubber piece separately, but instead, she instructed me to email the company from which she bought the thermos and forward the message to her. Unfortunately, I never received a response from either the company or her. Now, nine months later, I feel I've wasted my money and had a disappointing customer service experience. I won't be spending my time or money here again."