Do not receive full credit of data bundle

<p>Hi,</p> <p><br />Received an sms at 9h19 this morning (Friday), indicating a credit of 600MB data, 200 min, 300 SMS.<br /> <br />I am on wifi at work, thus not using any data.</p> <p> </p> <p>I have a screenshot as proof, that at 9h23 when I dialed *141# to confirm the credit, it indicated I only have 455.40MB of data - and I spent loyalty points on Wednesday to buy data.</p> <p> </p> <p>How can it then be that I dont have my full 600MB loaded as per the sms and my contract?</p>