FNB Switch Campaign?

On Wednesday the 15th of July 2020 I wrote a review on the poor assistance give to me on the FNB switch campaign. After I wrote the review a received a sms stating my complaint has been given through to FNB Customer Resolution Centre with a reference number and everything. The sms stated I will be contacted within 24-48 business hours. That did not happen. This is exactly what happened with the FNB switch campaign. Empty promises about feedback that never reaches me. And if by some chance feedback is given it is incorrect. What to do next?