AIRTIME *****!!!

I am submitting this complaint today 21/12/2017. Yesterday between 6:36pm and 7:00pm I added R110 airtime to my existing R70, bringing my total airtime to R180. I accessed the ussd *123# where I was offered 1gig for R29 to use for the weekend, leaving me with R151 airtime. I then got an sms to confirm that my 1gig of data was activated and would expire on the 21/12/2017. Why say it is valid for a weekend which is 48hours or 2 days, then notify that it will expire 6 hours later? *******! And to add fuel to the fire, I check my airtime at 6am, and I am left with R20! Vodacom Stole R131, and this while my phone was off!!!! *******!!! Keep in mind that my phone died so there is no way that there was any data used over night, until I charged my phone around 5:40am this morning. You ******* better fix this matter NOW!!!!