Why in the Ali Express app a while ago it cost 3 products $1.99

[abv01033]

Why in the Ali Express app some time ago it cost 3 products $1.99 and now it costs $5.99 I ordered once 1.99 but I am connected to the app it costs 5.99 dollars but I am not connected it costs 1.99 someone will let me know how I can order up to once 3 products 1.99 dollars thanks for the help