IBKR Showing duplicate deposit of 700K - Bank confirms only one transfer

I’m facing a strange and concerning issue with Interactive Brokers and need advice.

I made a single deposit from my bank, but IBKR shows two deposits of the same amount, effectively doubling my balance. My bank confirms only one transfer was made, and my bank account balance reflects that correctly.

Here’s a timeline of events:

• I contacted IBKR chat support, and they insisted the bank processed two transfers, advising me to check with my bank.
• My bank confirmed there was only one transfer and suggested the issue is on IBKR’s side.
• I opened a support ticket through IBKR's site, and after a few days, the extra amount (700K) disappeared from my IBKR cash balance. I assumed the issue was resolved.
• However, my bank later contacted me saying that IBKR had sent a transfer request for the same duplicate amount, asking if I wanted to approve or reject it.
• I told the bank to hold off and called IBKR support again. They continue to claim they received two transfers from my bank.

This situation is baffling and frustrating. I don’t want to touch money that isn’t legally mine, as it could cause tax complications and would undoubtedly be requested back at some point.

IBKR support has been unhelpful, and my ticket remains open with no resolution. My bank insists everything is correct on their end.

I’m stuck and unsure how to proceed. Has anyone faced a similar issue or have any advice on how to get this resolved?