How to manually file return of excess when 1099-R doesn’t report it

I accidentally contributed to a Roth in Robinhood and then took it back almost immediately - within the same hour. Robinhood support is saying that they cannot change the 1099-R to show a return of excess but that TurboTax can reconcile this in the tax forms. How do I do that? Am I allowed to just change the code in box 7 and claim return of excess even if the Robinhood 1099-R doesn’t match? Source: https://robinhood.com/us/en/support/articles/ira-adjustments/