Getting screwed over reimbursement

We were recently travelling from SYD to MSN and our flight out of SYD was cancelled due to mechanical issues after we sat on the tarmac for 4hrs. Due to the cancelation the earliest we would be able to get a flight into MSN again would be a full 2 days after our original intended arrival. The agent in the Delta app found a flight to ORD that would get us there at basically the original time, but we would then need ground transport home. We suggested we could Uber home (2hrs/150miles away) and advised them it would be ~$300, and the agent reassured us it would be reimbursed. Delta is now fighting the charge because "They don't reimburse ground transport from your final destination"... only we don't live in Chicago as we clearly described to the agent.

Any ideas on how to go forward? I've submitted complaints, contested the reimbursement rejection(different agents have offered credits of $70 and $120) but that amount still doesn't cover the full cost of the Uber.

We were recently travelling from SYD to MSN and our flight out of SYD was cancelled due to mechanical issues after we sat on the tarmac for 4hrs. Due to the cancelation the earliest we would be able to get a flight into MSN again would be a full 2 days after our original intended arrival. The agent in the Delta app found a flight to ORD that would get us there at basically the original time, but we would then need ground transport home. We suggested we could Uber home (2hrs/150miles away) and advised them it would be ~$300, and the agent reassured us it would be reimbursed. Delta is now fighting the charge because "They don't reimburse ground transport from your final destination"... only we don't live in Chicago as we clearly described to the agent.

Any ideas on how to go forward? I've submitted complaints, contested the reimbursement rejection(different agents have offered credits of $70 and $120) but that amount still doesn't cover the full cost of the Uber.