Not receiving contract data

I signed up for a SmartBroadband Wireless 100GB package while they were running the double data promotion. The details of the package was that I would receive 200GB daytime data, AND 200GB night time data, for the full 24 month duration

Now comes the start of a new month. I check my balance on the 1st of December after a night with a power outage, and see that I only have 100GB night time data available.

Is it customary for Telkom to **** customers out of what they are paying for?

Account Number: ***