There is hay fever epidemic in Hong Kong. Good Health Ltd. posts the following advertisement in the South China Morning Post: "Good Health Ltd. will pay HK$10,000 to any person who contracts Hay Fever after having used our Hay Fever pills, 3 times daily for two weeks according to the printed directions supplied with the pills. As a gesture of good faith we have deposited HK$1,000,000 in the Hong Kong Shanghai Bank in Wan Chai." However, two weeks later, Good Health Ltd decides to revoke this offer and puts a notice on its website, which reads: "The offer to pay HK$10,000 to any person who contracts Hay Fever after having used our Hay Fever pills is revoked on 6 September 2021." Mrs. Chen sees the advertisement above but does not see the revocation notice on Good Health Ltd's website, purchases the Hay Fever pills and takes them 3 times daily for two weeks in accordance with the printed directions accompanying them. She contracts Hay Fever and is very ill, but recovers. Fully advise Mrs. Chen as to whether she is entitled to claim the above HK$10,000.

Use IRAC(issue rule application conclusion)method please