It seems that the vendor is suffering from HS. It is becoming of almost epidemic proportions in the last decade or two, and no cure has yet been found. A classic symptom is leaving out punctuation, as can be seen in the quote, or gabbling whilst speaking.
The lower case "i" shows an inferiority complex, as well.
When I sell on eBay, worst case: If the buyer sends me a cheque (2 days to post) I have to clear the funds (7 days) then often I can only post at weekend (6 days) and posting may take 5 days in UK, so it can take 20 days or so.
I usually say this in the description, and have never had a problem.
HS? Hurry Sickness