Your Sasol rewards Customer Service is nonexistent

I can't believe you have a team with the most useless people and called it customer service! I called in on the 17th of March at 15:02 and was assisted by a Nokubonga, requesting to change my contact details(cellphone). I was advised it had been changed and changes will reflect 48hrs later. Today the 20th of March I checked on my app to see if the changes had been implemented, judging by this rating and review, no changes had occurred. I then call in to understand why that was the case, I was assisted by someone who mumbled a hello and seemingly had a hearing problem when she suddenly went mute. Please note that was my airtime I was calling with. If you are unable to update our details as and when requested, then allow customers to make the updates themselves, considering you are failing dismally at it. A change to a cellphone number should not feel like a swim from camps bay to Robbin Island!