Old Mutual Insure

I've been struggling the clear my name (ITC) for more than 2 months. After supplying the documents that Old Mutual sent me, showing that I was incorrectly listed, TransUnion says the documents doesn't proof anything.

After applying for a home loan, I discovered that Old Mutual listed me at TransUnion (ITC) in 2022. I was unaware of this, as I bought a new car and app**** for other contracts afterwards, without any issues.

I contacted our broker (3rd party) who supp**** me with 2 files from Old Mutual, to proof that I was incorrectly listed, which I forwarded to TransUnion.

After about 2 weeks, TransUnion closed my query with the following message: "Due to insufficient documentation received by TransUnion for TU**********0-000173-01 the issue has been closed. Contact TransUnion to lodge a new dispute/query".

How do I resolve this issue? Is there someone from Old Mutual that I can contact, as the files that they keep sending my broker, clearly doesn't help? We are pressured for time, as the contract that I signed with the home seller, is about to expire and will I lose my deposit of R100 000.