Service review does not work.

I logged a call re telkomsa.net via 10210. They did not resolve my problem, but asked me to review their assistance by selecting 1# for call resolved, and 0# for not resolved. I selected 0#, but every time I did this I received a message that I had not made any selection. Is this how telkomsa.net reviews their service?? That you can only select 1# ?