Upgrade to a 12 month contract and contract end date is wrong

<p>On 19/03/2017 i went in to a vodashop Three rivers were i upgraded to a 12 month contract on ********** 437 my Quotation number 1- ********** ********** my account I ********** -4 my id ********** 043088 i tookout a 3 Gig Data contract for 12 months but when i went and looked on my Contract end date on my vodacom account it shows 26 March 2019 in stead of the correct date which should be 26 march 2018.</p> <p>NB If thy cannot fix this i will want them to cancell the contract also if i asked when my next upgrade will be i do not get an answer.Please this is urgentthank you</p>