I had one phone interview, and a on site interview. Asked me mainly about my cv. It took them around 10 days to contact me again. I end up rejecting the second interview

I first had a call with HR, then an in-person interview with an email marketing manager and then with HR during which they told me they were actually considering me for a position i didnt actually applied for and for which i needed basic understanding of html. Therefore, they asked me to take the weekend to learn some html and come back on Sunday for the in-office assignment. After i passed the html test, the same day they asked me to meet the Head of Marketing and then I got an offer an hour later.