Hi @FAddi,
Thanks for the details!
In this case, and considering you have a paid account, I recommend reaching out to HubSpot support. They have additional tools and access that can help identify the cause of this issue. Usually, deleted contacts end up in the recycle bin, but since that’s not the case according to what you mentioned, it’s best to contact them so they can check what might be happening—whether it’s a workflow or a synchronization issue preventing the contact from being saved, or automatically deleting it.
Thanks!
Diana