Forced marketing *****ing our airtime !

When ussing the ussd cellpone service to purchase data, they flash unexpected offers inbetween menu options and the wording of the options is not clear, resulting in mistakingly buying a unwanted data bundle, using up almost all the available airtime. immediately called the contact center to reverse the purchase that was "forced" onto us by a combination of forced marketing and failure to have a 2 step confirmation. they referred this to the back office that will reverse the transaction in 3 working days with the condition that we do not use any of the incorrectly purchased data. problem is, we are now unable to use data until they sort the issue out because they apply a first in first out principle with Data bundles, so the incorrect data would get used first.