Cb store can only give invoice thru Whatsapp. They could not use WhatsApp Net so I can not get Bill from them. Can I use Leading Hat on any unit? You need to use Leading Hat through an internet browser or by our cellular application. The highest Hat mobile app https://gabletopcontainers.news.blog/2024/10/29/the-future-of-eco-friendly-packaging-gable-top-cartons-across-industries/