Hello:
I am new to cryptos and I must say that my first experience has been a bad one, I recently visited antminerusa.com and purchased some hardware, that was about 10 days ago, I paid using BTC, now the site is no longer available, its been down for 3 days maybe a bit more, this lead me to think this website is a scam.  Now what should I do to recover my BTC, if the purchase where made using a credit card, I would report it to my bank and they could void or cancel payment, but with BTC what should I do?, if there is nothing that I can do, then it is obvious that using cryptos is a scammers paradise because there is no protection to buyer (that I know), unless there is a way to introduce the complain in the chain in order to reverse payment.
This is the transaction id 30dc4f431ac3db1949b330ab8cd31d1bb019d4831e24cd7cd7f4215fca73073b if anyone could share some light I would appreciete it.