Unallocated Vodabucks

On 03 January 2022 at 05h39am I received an SMS from Vodacom reading "More Vodabucks! EARN 100.0 Vodabucks-Spend R5 or more on Just 4 You Voice bundles before 09/01/2022." Later that day at 08h12am I purchased "Just 4 You bundle of 60 Voda Min daily for 7 days at R19" however, I have not yet been allocated the promised 100.0 vodabucks. I patiently waited until I contacted Vodabucks through their call centre but can't get through to agents, tried via Tobi whom responded promptly saying "Uh oh, I'm experiencing a technical issue on my side." I am deeply disappointed in the service I am receiving from Vodacom, hence this is neither for the first nor second time, the problem also occured last week. When it comes to Vodabucks rewards I never have peace of mind like other customers. I would like to have my 100.0 vodabucks allocated.