Soooo yeah, companies have things called "trademarks" and "copyrights"... you can't just go putting another company's name inside your company's name, and then make your imagery the same as theirs, without their lawyers sending you a strongly worded C&D. However I don't see why this would have to shut down based on that -- why not restart under a new, distinct name and branding?
Though you don't seem to be using Vine imagery... why wait for the inevitable?
Advice: change name in domain.
Result: "AmazonBitcoins shut down by Amazon" https://news.ycombinator.com/item?id=5404232
Soooo yeah, companies have things called "trademarks" and "copyrights"... you can't just go putting another company's name inside your company's name, and then make your imagery the same as theirs, without their lawyers sending you a strongly worded C&D. However I don't see why this would have to shut down based on that -- why not restart under a new, distinct name and branding?
Though you don't seem to be using Vine imagery... why wait for the inevitable?