Question about Xiaomi Poco X3

I ask myself the same question... how can the same mobile phone cost 329.- instead of 289.- at Digi?
https://mi-store.ch/produkt...

I bought the phone on 28.09.2020. My current shipping status is: "The date has been exceeded by the supplier. As soon as we receive an update from the supplier, it will be shown here."
I paid 40.- more to avoid all these problems from Mi Store. I trusted digitec.ch , I hope not for nothing.

Mi Store of course :-)