Hi Alvaro, thanks for using Spendee. If you have you bank account connected, then it is not possible to mark a transactions from your bank account as duplicated or accountable. If you are talking about transactions that you added manually, then you can delete every transaction that you wish by simply clicking on “Bin” icon in the detail of transaction. If you wish not to delete any transaction, you can use our web app (https://app.spendee.com) that supports a bulk editing/deleting feature for duplicated transactions and also filtering feature to mark a transactions that are not accountable. Regarding the problem with your credit card, please write to our support hello@spendee.com and they will take care of it :) Thank you very much.