Similar story to the reviewer "MPark" found below. Went abroad (outside of EU), immediately turned off my data after landing, but unfortunately 2 or 3 Whatsapp messages had already managed to pass through, probably occupying 10-20 kilobytes of data at most, but nothing big really. In either case, the next day I unfairly received an SMS informing me that I was charged 59.50 euros for this, even though the ONLY information I got was that the data would be 15 cents per minute per kilobyte. This is terribly unfair and there is absolutely no transparency involved. A similar story happened to my girlfriend with Premiumsim, and she has had to cancel her account in return. I will do the same most likely, if i get no reimbursement.PS: I removed the chip out of my phone because I am afraid to get charged any additional hidden costs. They will probably use this as an excuse to say they "tried to call me but could not reach me", even though they have my email account in their system. Mark my words.*UPDATE*I'm sorry, it looks like I made a mistake. I probably used more than 20 kilobytes. Maybe it was 21 kilobytes. Maybe it was 100 kilobytes. Maybe even 400 kilobytes. This totally justifies the 59.50 Euro fee I was charged immediately right? They will never share the exact amount of Kilobytes i used because they know it was almost nothing eitherways, and absolutely not in accordance with the "15 cent per 10 kilobite" Tarif info SMS I received from them prior to the rip-off. What a scam.Stay away from any Drillisch brand if you want to avoid hidden costs (premiumSIM, winSIM, etc). It may be a bit cheaper but definitely not worth it.
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