Horrible ESIM service

i have been struggling from 28 October 2025 to get a esim registered on my apple watch. I have been to a store numerous times. Tried calling 135 and was told they don't handle esim. I have been to Devonique Fry at MTN Garden Route Mall in George 3 times now and she has escalated it but she has now ignored me since 20 November 2025. How do I registered my Apple watch on the MTN system?