Eagle_Owl thank you for the effort post. I tried to access the call forwarding settings on both SIMs, and on both, after some time loading, it ultimately gives me a "SIM access error".
You're right about one of the SIMs being brand new in the market (in this case, Digi), that's the physical Sim, and I'm not so concerned about that one.
The one that concerns me is Vodafone, because it's well established in my country and worse, it's my main number. It's an eSIM, so it's extra inconvenient that it's giving me issues. It's the phone number I have for all my banks also.