To delete a recharge from your history you must first:
Log in with the username and password of your Fonoma account.
Once in your profile, access the history:
On the section "Recharge History" you will see all the recharges you have made from that account, with information on their status.
Click on the recharge and select the delete option available to you in the left-hand corner of the screen.
Then, confirm the action and you're all set:
Done! I hope I helped you.