bonus airtime

I recharged my phone ( ********** 414) with R15 on the 7th Sept 2017 at about 10:58 with the intention of getting R75 bonus airtime as promised by Vodacom(*123#option5).I phone call center after an hour seeing there is nothing coming through and case was locked with vodacom.i could not make calls the whole day waiting for bonus a/time to be allocated.The next day when i wake up i saw SMS that i have been credited with R75 bounus airtime.I phoned Vodacom again requesting bonus airtime be reversed and give it to me today(08 Sept) as i could not use it last night,i was not aware as it was allocated very late. thank you Moditi ********** 414