No service for item purchased

Yesterday (14th Dec 2019)my wife and i purchased a Mo'Nice data bundle of R57 which contains 4gigs for 10 days . Since yesterday we were unable to make use of this service and today we decided to contact customer care. The consultant tried to assist us but unable to resolve our query. Whilst on hold my wife purchase a normal data bundle and she was able to make use of the internet . She tried to reset our mobile network settings but still unable to use the internet with the Mo'nice that i have . I then also decided to test and purchase a normal bundle and i was able to use internet . What do we as consumers do with data that was purchased yet we can't make use of it . Your call centre can't assist . I demand a refund on the Mo"nice that we purchased .