Surprised Voucher From AA

while using gmail, received email from AA with the followings:

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Hi YL LAI,

You've received a complimentary AirAsia E-Gift Voucher as part of our On Time Guarantee compensation.
Please click here to receive your E-Gift Voucher.

Thank you!
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After clicking the link:

We apologize for the flight delay and hope you'll accept this E-Gift Voucher as our On Time Guarantee compensation.
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due to not yet read that reply email from them, i duno what the answer they given
the purpose of email juz to let them improve more and i dun wan to be waiting for so long again
this voucher is 200 MYR