A support inbox was exported as a list of dictionaries, one per email, with a sender, a subject and a body. The text is what real inboxes look like: stray spaces, random capitals, tags in brackets, order numbers, amounts and phone numbers in several formats.
The tasks mix the unit. Some need only string methods; others need a regular expression with groups. Pick the simplest tool that's correct, and remember the traps: escaping special characters, greedy matches, and search versus fullmatch.
Every answer is re-checked on a hidden inbox with different emails.