No notification of expiration of data

<p>I bought a Double Your Data package of 1 GB last week, and in the meantime it expired without any SMS warning, which led to R500 of my airtime being used for data on 250MB. This is unacceptable, as I use a lot of data and specifically buy the bundles for this purpose, I try to be responsible with my savings, now I have to pay R500 more for ****ing airtime that has been lost, which I have been using sparingly for the whole month, due to you assuming that one must smell if your data has expired, but it will only cost R2 of your airtime per MB out of bundle, which is good for Vodacom's profits, but not so good for the customer. After more than 10 years with Vodacom, I will reconsider my options once my contract expires at the end of the year.</p>