Does this not violate any "traffic neutrality" laws? I remember in my country they fined a bunch of operators because they deliberately gave lower priority (slower internet, more dropped calls) to traffic from their new and very hot competitor.

Also, just a thought, do other URLs work? Could it be that there is some kind of spam filter? If there have been enough cases of people being scammed through SMSs, some operators may temporarily ban URLs. Unfortunately, .win differs from the usual .com and .org, and might be accidentally flagged as spam. I am sure not many of you will click on a link to www.google-search.win