NS monthly invoice

Good morning, 

After several conversation with your colleagues I am writing to this service to find a solution. This morning I received my monthly invoice for all the trips in the Netherlands. After revising it, I found that there is an imbalance between the actual trips and the price charged. First of all, a trip was charged when it was on Friday 25th April at 18.55h and I have a NS Flex subscription. However, this was already solved by one of your colleagues. Nevertheless, I later calculated the total amount of my trips and it is (including that trip on Friday) and the amount is 134,92€. Taking into account that quantity and the NS subscription I currently have (31,36€), the total amount would be 134,92€. However, the invoice is for 138,51€. Therefore, I would appreciate if you could change the invoice to the actual amount, which would be a total of 123,32€, eliminating the previously mentioned trip. 

Thank you very much for your help. 

Best regards, 

Beatriz Vanrell