Firstly, Mamuna thanks for emailing with me separately to this thread.
Before I go into the specifics of this claim, I just want to explain little bit more about the algorithms we use to identify duplicate accounts.
Essentially we look at a combination of a customers IP address and their 'browser fingerprint'. Here is a tool that can test your browser footprint. https://amiunique.org/fp
As part of my research for this reply, I did my own 'browser fingerprint' test on this site and it turns out no other browser from 701,298 records is like mine.
When we flag up duplicate accounts, we look at a combination of customers IP address and browsers they use and whether they used bonuses.
Customers can have as many duplicate accounts as they like, as long as they only use these duplicate accounts for real play i.e. no bonus use
We have flagged this person up as having 232 duplicate accounts. And yes, this is a lot of accounts. However...The largest number of duplicate accounts we have ever seen (aside from this) was with spammers claiming no deposit free spins, where they registered a batch of 152 accounts over two days. It takes approximately 5 minutes to register a throwaway email address, register with Oshi and confirm on Oshi and then receive and activate the bonuses, plus play the spins.
In this case something unusual is going on with these duplicate accounts. It looks like this person has somehow been 'touched' by a browser fingerprint and IP address that is shared with hundreds of other players. The IP address is 127.0.0.1 , otherwise known as localhost. http://www.tech-faq.com/127-0-0-1.html
So, that explains the vast majority of these duplicate accounts, however there are another 6 players using an IP address 103.49.203.XX , which resolves to Bangladesh where all players have identical browser fingerprints.
The customer is arguing that they could have picked up a public Wi-Fi connection and therefore ended up using a shared IP address from a number of other players.
However, if we work on the laws of probability here:
- unique IP address (fairly low probability)
- unique browser fingerprint (extremely low probability)
- all players on this IP address / same browser played with real money (very low probability)
- all players on this IP address / same browser used an identical first welcome bonus (we have 20 different welcome bonuses)
- playing on oshi from the same IP...(there are 3,000 casinos out there)
Then by the laws of probability this person has created duplicate accounts.
Duplicate accounts are a serious problem amongst all casino operators. Why? because they are profitable for those people creating the duplicate account. So, we have lots of provisions in our terms and conditions and tools to deal with this issue.
As a business, we stand by our terms and conditions. What does that mean? If for example somebody makes a claim against us and they fulfilled our terms and conditions, then of course we would pay. If you read through a couple of the older AskGamblers complaints you'll see examples of payouts.
In this case, this customer is saying he is innocent. However, the probability of his innocence is very low. So we have to make a judgement based on the evidence and it looks like this is a duplicate account.