Please sellers

If you are a seller and you are busy, are late at replying or on vacation I feel like you should put it in your description. An estimated time of when you can get back to people is so helpful! Because not only have I been left hours with someone not replying but days and I start to think this person isn’t gonna send me my stuff or they’re ignoring me. It’s just super rude especially if I see you posting new listings and you see that I’m worried about my things not being sent after a week of purchasing .