Have you ever felt bad for wanting something.

So i walked into Mtn shop in schoeman street polokwane today 07/10/17 desperately looking for airtime, but nobody could assist me in the whole shop because they all didn't have CHANGE, nobody showed interest in helping us , they were busy on their mobile phone's. I felt like i was disturbing them didn't ask so many questions i just walked out feeling so bad for even wanting that airtime. Such service is unacceptable really.