Data bundle added to wrong number not removed

I needed to add a data bundle to one of the data contracts on my account. After not being able to load it myself on MTN Active I was forced to call 808. After 2 days of not being able to get through I set aside some time at home and eventually got through: this took at least 20 attempts of listening to your awful music and recorded messages before being cut off. When I did get through I very carefully explained which number needed to have a once off bundle added and the consultant seemed to understand. When I hung up I saw he had credited my call contract with 3Gb of data. I then had to go through the process of getting through to another consultant who added another bundle to the correct number and said they would listen to the recording and remove the other bundle and credit me. This was all 2 days before a massive exam which I actually needed to be studying for. I followed up a few days later and was told that they would remove the bundle and ask billing to credit me by another consultant. I am still sitting with the unnecessary bundle loaded on my phone and no indication of a credit. I also contacted you via Facebook last week and no response.