Misleading information provided

I app**** for a contract at vodacom online. Everything was approved and an email has been received stating that the contract that i app**** for was approved. This morning i called the call center for an update on the next step as this is my first time however i was informed that i didn't qualify for that certain contract however there are other deals that i qualify for. Why mislead customers on sending emails that they are approved for the certain contract and your call center advise differently