Simple query on package migration

<p>I recently renewed my contract and at the time was recommended to switch to a Top-Up package. What wasn't explained to me at the time was that on a Top-up package when my free minutes expire I am not automatically charged out of bundle rates. Rather, I have to manually buy more airtime using a debit or credit card. Also, when I run out of data I can't buy more and have it added to my account, but like the airtime I need to pay using a debit or credit card. So I phoned the business call centre twice with the same request and eventually received 2 quotes, both to migrate to the same package. However, the quotes were different and nobody can explain the difference to me. I also just received an sms to say my request to migrate is being processed. I never requested a migration - all I did was request a quote!</p>