Heartbroken

Last night while chatting with my mom who lives far away in Chiayi, She mentioned that her whole day had been going poorly, Especially when she went to 7-11 to send a package and was mocked by a clerk. My mom is illiterate; she can only write her own name, and even that is written stiffly. She used to send packages at a shipping center, but recently they stopped accepting them, so she started going to 7-11. Before, sending packages was always normal, and I remember 7-11 clerks being very friendly. First, a male clerk asked my mom to enter the shipping information herself on the i-bon machine. My mom said she couldn't read, so later a female clerk came and also asked my mom to enter it herself. Upon hearing that my mom couldn't read, she told her to use her phone to enter it, but my mom uses an old flip phone. She was then mocked, told that if she's like this when she's old, no one will take care of her, and that many people older than her can use smartphones. Throughout the whole process, both clerks had very unfriendly attitudes. It's not that convenience store clerks absolutely have to help with certain things. If they were busy or it was inconvenient at the moment, just letting her know would have been fine. Thinking about my mom being treated like that, I feel truly heartbroken. Perhaps the clerks had encountered unreasonable customer requests before, or were frustrated with their work. My mom just happened to be in the line of fire. I hope everyone treats others kindly. No one wants their elders to be treated unfairly. I believe people are fundamentally good, and this was just an isolated incident. I hope everyone who needs help can receive kind assistance appropriately.