Welcome to our NS Community. We don't sell season tickets with this name. This was probably RET, HTM or Connexxion. You should contact them for this.

As TS writes that he receives invoices, it looks like there is a conflict between NS Flex and the regional subscription.

In that case TS should call NS customer service to have the bus/tram/metro part of NS Flex disabled.

Hi,

I would like to confirm if my monthly subscription is automatically renewed each month, as I now have an invoice for 33 euros? I am unsure what this is for?

Many Thanks

Colleen 

Yes, season tickets are renewed automatically every month and the costs are deducted from your bank account automatically.

You can find an invoice for every deduction in Mijn NS > Betaaloverzicht//My payments. On the invoice you can see what exactly you're being charged for.