Credit due to me not settled after 8 months.

My Telkom account *** was taken over by another person in June 2015. Due to the time of the month of the takeover there was a credit due to me of R19.84. I have supp**** Telkom with the necessary documents and bank account changes to credit me with this amount. Telkom assured me that I would be credited with the amount to my bank account by the end of July 2015. To date I have not received this credit. I continually receive a tax invoices on a monthly basis reflecting the credit due to me. I have complained on Facebook and have been assured with empty promises and apologies that the matter would be resolved soon. An email was sent to Telkom as request with new banking details on 5 November 2015. Nothing yet. I am now living overseas. Please resolved this matter with urgency and quickly.