Hello, I only use a phone and a computer. Whether the IPs are the same, I might not be able to know because I use a VPN. Then, the same betting pattern; what do you mean by "same"? If my betting is similar to another player, is that not allowed? If you believe I am cheating in my betting, please state it directly instead of accusing me with such a baseless excuse. Also, you're suggesting that the identity I registered is not genuine? Why are you claiming my identity is not real without even verifying it? I believe there are many shortcomings in how you handle these issues.
Even if we suppose you only have one account and the other 14 are not yours, there is still a term being breached: using VPN. And I somewhat doubt that their findings of those connected accounts are baseless and wrong, they tied the IP with device fingerprints, I think they're quite thorough with the investigation.
You can try to escalate this to CasinoGuru or other mediator where Shuffle can share their findings in private, thus validating it, but that'll be just a waste of time if their claim is true and you tried to cheat them, CG's representative can and will verify those findings and ruled in favor of the casino.