Question about Huawei Mobile WiFi E5785

Why did the product become 20 CHF more expensive within 2 days? Sorry, I don't think that's ok! So I am forced to order the good piece via Amazon.de, which I find really a pity, because I would rather support a Swiss company...But with 20 francs difference I am out...Btw. when I put the product in the shopping cart, it was still CHF 109....