Now participle phrases functioning as adjectives: "dealing with staff who just don't seem to care" as a present participle phrase, used as an adjective, describes the interaction with staff, adding descriptive and complexity to the sentence.
Indirect speech: "You expect a quick, helpful response, but end up feeling" uses indirect speech to express the contrast between customer expectations and actual feelings, adding emotional depth and complexity to the sentence.
Conditional adverbial clause: "when you're stuck on hold forever" as a conditional adverbial clause, describes a specific situation, enhancing the contextual feeling and reality of the sentence.
Present continuous tense: "Young people today, they're all about instant solutions" uses present continuous tense to describe the current attitude and behavior of young people, emphasizing timeliness and generality.