How do I reimburse from CNS when paid over visa/bank transfer/in cash?

Hi all,

I’ve accumulated around 2000 euros of CNS reimbursement over last 6 months. I would like to get answer to the 3 below questions:

1. In [Doctena.lu](https://Doctena.lu) I paid for doctor appointments (online) using online payment with VISA. I didn’t make a bank transfer. Is it enough to just send a debit history for that? I am also missing some appointment confirmations from the doctor (usually I receive an invoice with line items). Should I call my doctor and ask for these visit confirmations?
2. There was an instance where I visited doctors twice in person. These payments were done in-person using debit card. Is it enough to print a debit history?
3. For some doctor visits I paid in cash. I only have an invoice with document and doctors signature. I was told it can be reimbursed by CNS.