Let's filter the Transactions and Mileage tab to look for these 2020 transactions.
Go to your Transactions tab and filter the Type to All, Account to All, and Date to Last Year. The same with your mileage. In the Miles page, set the Type to All, then year to 2020.
Try to look for these transactions. If those are still missing, then I suggest reaching out to our Customer Support to help you find these. They can check your account in a secure environment and help you recover those missing items from the account.
Here's how to reach them:
Go to the Assistant menu from the top bar.
Enter Talk to a human and select I still need a human.
You'll now be provided with support options that are available at that time.