Because samsung and apple have a completely different business model. The store is an independent, running under a xiaomi licence, so they are responsible for their stock imports. Short of having planned for the coronavirus crisis, and having ordered a massive buffer of phones in advance, they do not have the resource of grabbing them from their local warehouses. And, before you ask, they couldn't do that as stock is one of the major costs in retail, and would make the prices skyrocket. There is a reason why apple and samsung phones are way more expensive, and it's not their tech...