I'm sure a casino with a good reputation won't do that without proof.
Most casinos
(reputed or not) who labeled their users "multi-accounting" don't usually give proofs to other party, it's unfair, either the user is telling the truth or not. This only happens
(casino giving proofs) if most of the community trying too boycott the reputation of the said casino. For the OP's case, i don't think Stunna or their CS will give you detailed statement regarding your case
(well, i still hope so) not unless they are in a hot seat.