Retrieving a wrong deposit typically depends on the policies and responsiveness of the platform Duelbits.
All you can do is continue to follow up with Duelbits support and wait for their response. They may be able or not to retrieve your deposit, as it depends on their internal processes and willingness to assist in such cases. Patience and persistence in your communication with their support team may be your best approach.

I think it is possible for Duelbits to retrieve your wrong deposit but it is not guaranteed. The success of retrieving a wrong deposit depends on the difficulty of retrieving it. It has been over 1 month since you contacted Duelbits support. For me this is a long time, but it is not necessarily a bad sign. It is possible that Duelbits is still working on retrieving your funds. However, if you do not hear back from them soon, you may want to contact them again and ask for an update.