About 3 weeks ago AmEx issued my statement. I have direct debit set up and decided to instead pay through the app straight away so I don't have a large sum of money sitting their for no reason. Yesterday was the day my direct debit usually gets processed for which I got an email saying "Thank you for your payment", I quickly logged onto my AmEx account and realised I had been charged again! I quickly called AmEx and they put in a refund request. The lady on the phone told me that their system has no way of knowing if you made a manual payment so it will process the direct debit whether or not you already paid. I think it's ridiculous that a company as large as AmEx doesn't have a system to detect this.
Consider this a warning and to check your statements and accounts often!
You've set direct debit…..then you do a manual pay…..why???
Before you reply back with oh it's because I don want to have a large sum of money waiting there….whats the difference between leaving the money in one account and on your other account?