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.
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.