The Correct Answer was
However, I think this is a very poor answer. Were I the setter of the question, I would treat the + as an unknown operator. A more reasonable answer than the "correct one" would be:
Take the descriptions of the bottles,
So, to follow that new instruction:
A list of all of the other messages in the puzzle, useful or not:
Following the first instruction from the bottles:
Following the second instruction from the bottles:
The beverage descriptions:
Very partial answer/ideas:
I’ve made very little progress so far, but they’re too long to put in a comment.
The note can be deciphered by
This gives us the following text:
From here, I believe we have to
Send your box with gift inside locked with your padlock to the recepient.
He will send the same back locked with yours as well as his padlock.
Remove your padlock and send it back with only his padlock.
As Mariia mentioned in her answer above, this is indeed
By guessing that
Now, some logic and educated guesses help narrow down the moves:
Now let's see the letters that we'll need:
Continuing on like this, all moves are forced to go in one specific place, until the solution is reached:
Partial Answer, more like initial analysis really...
Hint #2 says to focus on where the capital letters are. In the first two stanzas there is unusual capitalization. I believe it is a pattern of zeroes and ones meant to be binary.
The fourth stanza says "As the first is one".
Starting with 1 and continuing word to word, ignoring new lines I got:
The dots in between the squares...
These can be interpreted
There are also some other ways to extract similar arrangements of letters:
The data collected:
The next step needed heavy hinting for me to find it:
Unused information [hinted to be a clue to the step I did first]:
Here's an attempt to tie this up... As already established, the clues here refer to:
current bond (formerly 'spray heart')
unpleasant garbage (or 'strict code' in hints)
Taking the 'unshared' letters from each pair suggests a solution of: