In $1996,$ Pepsi introduced their $$Pepsi Points$$ promotion, which allowed people to collect points from pop bottles to earn merchandise. One television advertisement featuring items that could be purchased with Pepsi Points humorously ended with a student landing at school in a Harrier jet, with the line $7,000,000$ Pepsi Points$$ appearing on the screen. Because additional Pepsi points could be purchased to make up for point shortfalls, one Pepsi customer presented Pepsi with $15$ Pepsi Points and a cheque for $$700,008\mathrm{.}50($to cover the excess points and shipping and handling$)$ for the jet. Pepsi refused to present him with a Harrier jet, and he sued. Did the advertisement constitute an offer?