3 month free PS Plus membership

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I bought a 1 year PS Plus membership a month ago and I got a message regarding 3 extra months. Now I looked it up and it was a "Favor" from Sony as there's gonna be a price increase in PS Plus memberships. Now, when I check the expiration date for my PS Plus the date is still exactly 1 year. I wanna know if it automatically renews it to 3 more months or if my 3 free months haven't been counted. Do you guys know anyone who had something like this happen with them?
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