Incorrect airtime allocation for RED CLASSIC+

Vodacom package data and voice allocation reflecting incorrectly on my available balances. I upgraded my package to RED CLASSIC+ at the beginning of august and my package commenced on the 1st September. at the time of upgrade I queried why the system reflected only 800 minutes and 2 GIG data for this bundle when this package is advertised as 1200min and 4 gig of data. this morning when checking my balances available online and via *135#, my available balance is 800min and less than 2gig of data, please advise.