Wrong information with wrong number

I tried applying for a contract online but was declained cause a Vetting Application has been put against my line and then they give you a number to contact but when you dail that number this number belongs to someone other company that has nothing to do with Vodacom the number is ***. So how can Vodacom send out a message to query your account if they give you a wrong number. And according to me my account is not in arrears. And my upgrade is due in June so my question is will this affect my upgrade when it's due????