In Charging service application, website errors can be Incorrect translation, website not loading correctly or other technical issues.  

First try yo solve the problem for the customer with this steps:

• Ask them if they have the latest update of their web browser
• Ask them to look so no automatically translation option is active

If problem not solved through troubleshooting we always create a ticket to back office team with all information collected and tell the customer that we are currently working on that and thank them for let us know. Then close the errand.