Poor customer service, incompetence, and bad attitude

On the 2019-01-14 I went to Randburg branch hoping to get a Roadworthy Certificate for Uber. I was just given the forms to complete without being asked what service I need. I then ticked the "Roadworthy" option on the form because that was the option I thought it includes the Uber certificate. The NRW document was presented to me. On the 2019-01-16. I went to the branch to explain that Uber is rejecting NRW, and the branch manager told me that it is my fault because I didn't explain to them that I want an Uber report. Firstly, nobody explained to me that there are different reports and also the form didn't have option for Uber option. How do I know or assume that there are different reports? Also the service there is appalling including the manager's attitude!

Where to from here? Complain to a branch manager who simply doesn't understand the basic concept of customer service?