ItsDeductible Deleted Item Donation

[J_Nixon]

We have used ItsDeductible for years as a time saver for our itemized deductions. We prepared a large item deduction. After dropping off the donation, we want back and updated the donation's details, like date and charity zip code, which we had wrong. Now the hundreds of items we had itemized are gone. The donation is no longer present on our account. It disappeared after editing the charities zip code on the admin section. 

Can this be recovered at all? I see no option on the ItsDeductible website nor iPhone mobile app.