Can you please update the Category options to:
* Bug  
* Feature Request 
* Change request 
* Annoyance  
"Technical change" can mean anything and nothing 
 
Bug  -  problem, unexpected behaviour, something goes wrong if..., UI problem with a browser Y etc.   
Feature Request - request for new feature, new functionality, new language  
Change request  - change something already available to be more effective, usable (this is NOT a bug) 
Annoyance  - way application behaves in situation A is really annoying, odd, absurd 
  - almost a bug but not really, works but pain to use.