Getting billed for promotional minutes

<p>The upgrades department phoned me and offered a upgrade, told me if i do the upgrade with them, they will give me an extra 500MB per month for 24 months and 100 minutes per month for 24 Months. No problems, I got it month after month. But, in December I got a call again, from the migration dept. They offered me a bigger package, because I was still using more than what I was getting. I asked the persone 3-4 times that if i do the migration, if I will still get the promotional data and minutes, otherwise it won't be worth it. ( A smart M package with the promotional minutes and data is the same than a Smart L with none).</p> <p> </p> <p>In January I got my extra 500MB but no minutes. In February I got 500MB and 2 x 100 minutes, but I got billed for the minutes. In March I got the 500MB and I got billed for 100 minutes again. On my April bill so far, I am getting billed for 100 minutes again. I spoke to so many people from the call centre, my query just can't get resolved. The last lady I spoke to said that my account will be credited within 7 days. After 3 weeks, nothing has happend. I am tired of this now and want this issue resolved.</p>