“Thanks for answering me back!”
Sadly, I get this reply a LOT when I call or email people as I am very quick to answer my emails. I also get “I can’t believe you answered me back”.
Even if I can’t answer right away (I might be in a meeting), I generally reply with a quick “I got it and will get back to you by __) as soon as I can. I send them something so they know I saw their message. They feel valued. Voice mails? I try and answer within one business day or sooner.
Why do I do this? First, it’s good customer service. Second, it gets clients as I have gotten many gigs because I respond so fast.