"I've ordered transcripts and I'm calling to check on the status". or "I ordered transcripts this morning and I'm calling to check on the status".

I'm sorry for acting like a dictatorial Yankee machine. Just ignore me.

The question doesn't ask you if you'd like to have his knowledge, anyway.

Hey! I'm not a teacher but I'll try to help you. 1. You can't say 'Yes, I would not'. It definitely doesn't work in English. Either you choose 'No, I would not' (or 'I wouldn't') or 'Yes, I would'. 2. I'm not sure if I got what you meant,

I usually see reminder like in 'reminder for someone to do something'. Thus, the first one sounds better to me.

Oh, sorry. I know the meaning of port... and still don't see any reasons to place 'one' somewhere in that sentence. "These can be delivered to any port, anywhere in the world." sounds fine to me.

Why do I have this feeling that he's not looking for information in the proper place?

"What business are you in?" would do the job as well. Google's found only 233 occurrences for "what line of business are you in" against 3,840 for "what business are you in".

These can be delivered to any door, anywhere in the world.

When the particle did or do precedes the verb, it goes in its infinitive form: - I didn't know that. (past tense) - I don't know that. (present tense) - She doesn't know that. (present tense)