1.What made you think you're safe playing on a site which has the same interface of rollin.io and looks like a clone with different color scheme anyway ?
2.Regardless of the looks,he blamed you for having multiple accounts and double spending,the proofs posted above doesn't prove anything.Do mind linking to the transaction which was confirmed as you started playing ?
3.Also ,you made 40 accounts on the site with low deposit wins.I see it as cheating the system by double spending from each of them.Of course unless you can prove us wrong.
1. i like dice and try it
2. I have not multiple accounts and double spending..
in this case can't use double spending, because deposit added after 1 confirmarion.
my deposit: 0.0033
BTC https://blockchain.info/tx/5cc2130282a4584c80bb45bfbb56feeb5e7075f0410a3582adf7b49c9d8e0faa3. I have 1 account only. username: bomberman
Did you use VPN whilst connecting to their site? Or did you use Tor? Maybe that's where the confusion was coming from.
I strongly doubt that they would scam for $9 even though their interface seems to be completely copied from Primedice. After all they do have a signature campaign running and the domain name is probably registered with more than $9.
But attempts to doublespend are indeed futile when you take into consideration that they do require 1 conf.
Hopefully he refunds you, because he probably has way more than that in his BTC wallet.