Unable to use additional data bundle purchased befor it expires

I have this morning telephonically spoken to one of telkom consultants regarding the following issue. In September I purchased a 3 gig once off all network data bundle for R199 as I had used a lot of data due to a windows 10 download. This data expires on the 01 November 2017 and to date none of it has been used. On your website I now see that I am using recurring Telkom mobile data which expires 01 December 2017. Your consultant has informed me that I must use up this Telkom data first before the data I purchased will be used. When I purchased the once off bundle the Telkom mobile data which expires 01 December 2017 did not appear on the website. As my 3G is only used at home there is no way that I am going to use it as your system will automatically use next month’s Telkom mobile data. This will then result in me being short of data next month yet I purchased additional data that I have not been able to use. I have tried to email the complaints email address at Telkom only to be told that the mail box is full. I have also tried the talk to us service with no success