Lack of service and false advertising

<p>I did an upgrade on 14/10/2016 and were told I would qualify for an onc off 10Gig data. This was never given to me and I queried it 3 times now from the call centre as well as with 2 different stores, and up to today, NO ONE can give me answers as to why I have not received it. I also asked to change my contract, I had to sign a change form and I hand delivered it to the store where I did the upgrade, and yet nothing has been done. Pathetic to say the least. I believe they are in breach of contract and need to find out if I can cancel my contract upgrade?</p>