Do not send a duplicate solely because confirmation is not yet visible. Check the actual transaction and follow the appropriate official process to clarify its status.
Resolve the payment record before repeating it
A bank debit and an official confirmation are different records. Neither an unresolved transfer nor a completed gift establishes the entire immigration decision; eligibility, admissibility and visa availability still require the applicable review. Silence and failure look identical from the sender's side, and the cost of confusing them is asymmetric.
A duplicate transfer is far harder to unwind than a delayed confirmation is to chase: the second payment has to be identified, traced, and returned through the same correspondent chain that carried it, and in the meantime both transactions sit in the record without a clear explanation of why there are two. Hypothetical example: no confirmation appears within the period the applicant expected, a second wire goes out on the assumption the first failed, and both eventually arrive. Before repeating anything, establish which of the three records is actually missing.
If the bank's execution advice exists, the money left and the question is one of matching, which the receiving process resolves through its own channel. If no execution advice exists, the transfer may never have been sent, and the bank is the right party to ask. Set a defined date for the enquiry when the transfer is made, and treat that date as the trigger rather than the anxiety.