Terrible after sales customer service experience

Bought a new phone online on the 23rd of January and was delivered on the 7th of February. I also paid for Samsung care plus for 3 years when I bought the phone. My phone has not been registered with Samsung care plus and I have contacted both Samsung SA and IUA who administers the Samsung care plus and have not received any help or resolution. The last time iua responded to my emails they told me that they were still looking into the matter. It's been weeks and nearing the end of the limited time where the phone can be registered with Samsung care plus (3 days left) and nobody has gotten back to me despite me emailing asking for feedback. At this point I would like to get back the money I paid for the Samsung Care Plus (R2500) when I bought the phone online since it's clear that I am not getting the service. This has really been a disappointing experience, and I for some reason expected better from Samsung South Africa.