help! prélèvement tous les 6 mois

Bonjour,
je m'aperçois que je paye depuis plusieurs années tous les 6 mois un abonnement d'un an... Mes prélèvements sont :

Your Automatic Renewal Status Your subscription to Norton Internet Security™ was renewed on December 25, 2013 and your subscription extension is being processed.Your credit card listed below was automatically charged EUR 59.99 on December 25, 2013 for another year of protection.

 

Your Automatic Renewal Status Your subscription to Norton Internet Security™ was renewed on August 10, 2014 and your subscription extension is being processed.Your credit card listed below was automatically charged EUR 59.99 on August 10, 2014 for another year of protection.

 

Your Automatic Renewal Status Your subscription to Norton Internet Security™ was renewed on December 27, 2014 and your subscription extension is being processed.Your credit card listed below was automatically charged EUR 59.99 on December 27, 2014 for another year of protection.

 

YOUR PRODUCTSNorton Internet Security™
Your credit/debit card will be charged automatically (plus applicable taxes based on the address we have on file) without any further action required by you on August 10, 2015. Your subscription for one year of protection is EUR 59.99 (price includes VAT) .

 

Je demande donc le remboursement des 2 prélèvements d'aout, et que mon abonnement me couvre jusqu à fin décembre 2015...

Le chat ne me répond pas, et je ne sais pas où m'adresser....

Merci de vos réponses