Here are the steps you can try to resolve this issue:
- Verify if your web browser is up to date
- Clean your cookies and cache
- Try with a different payment method (credit card and Paypal are usually working great)
- Try from another web browser like Firefox or Google Chrome
- Try from another device
For CembraPay AG Payments
For CembraPay AG Payments, make sure that your address is correct. Please note that if you try ordering for a company, you have to use the company name and not your private name or address. The billing address and the shipping address need to be same.
With Paypal
You can also select PayPal as a payment option. On top of being secured, PayPal offers the possibility to pay as a guest without having to create a dedicated account.
For Credit card
Verify if your credit card is still valid and that no extra space was entered. Do not forget to confirm your payment in your e-banking app to validate your order.