Me: "Hello. Thank you so much for taking the time to Beta my story. Here are the chapters to my story. Thanks."

*1 day later*

Me: "Hello, I just made a minor edit for chapter 3, so read this one instead."

*2 days later*

Me: "Hello, I just made a major edit for chapters 1, 2, 3, if you haven't started reading my story, here they are. If you have... here they are. I'm so sorry."

*3 days later*

Me: "Hello, I just rewrote chapters 1235678 in all it's entirety and added a prologue, epilogue, a preview to my next story because it's so riveting, and a fucking back story of the protagonist's sister's friend's mom when she went on a vacation to the Bahamas to have interspecific sex with a whale-shark. I deeply apologize for the inconvenience but these edits are of the utmost importance."

What I imagine the Beta reader wants to say: "I hope you choke on a dinosaur dick."

What the Beta usually says: "Don't worry about it! : )"

RESPECT.