A request for my vodacom contract not supp**** !!1

I requested my upgrade date from vodacom.Somehow the upgrade doesn't make sense as i have had my phone for more that two years now .I first requested a copy of my contract which i received and could not open.I mailed them and asked if it could be sent in pdf format which i am still waiting for.I went into the store at canal walk and explained the situation.I spoke to a lady who said because i did an early upgrade previously,my contract is only renewable in October 2016 and that vodacom no longer does premature upgrades.The upgrade date and the end of contract date is completely different.If there are no premature upgrades how does this work?This means i would have my phone for 4 years when my contract ends.I have been a vodacom customer with the same contract for 18 years.That\s about to change if someone does not sort this out as soon as possible."