Total ******* , money down the drain

i took out a 50 GB internet connection with dstv and was told that i will also receive 50g free data for the first three months that means in total its 100GB. the first month which was December it go depleted and i was advised that i can top up which i did to avoid issues. now in January my debit order failed on the 7th and this result in my services being disconnected. i then made a payment on the 20th the past Sunday and today is Tuesday i am told that the data is depleted 100GB this is a total *******, the agents don't even care they tell you should you wish to cancel you will a cancellation fee. no one is home during the day, got him after 7 yesterday and today again yet my data is depleted. i cant be paying for such nonsense when there are unlimited wifi and i am only trying to be a loyal client. i should listen to my friends and cancel everything all together.