Rain network empty services *****ing my money!

Hi i bought an unlimited data from rain network (rain.co.za) on tuesday 02-02-2021 for R299. The sim card can not connect to network since day of purchase. I spoke to Matladi Mohapi (rain CeC) of rain through email and she said they are upgrading their systems so she's unable to assist. Later on the same day they sent an email saying, "the ticket #504*** has been resolved". The sim card stil don't connect to network even if i try different smartphones though last year october and november i was using rain sim card for R250 unlimited data monthly on same smartphones and locations. I told them i want a refund since their sim card is not working and they can not help me connect to network but they are failing to refund me instead they say they've cancelled the sim card.

Here is a quote from rain; "How does upfront payment work? Your first 30 days is paid upfront. If you want to cancel at any stage during your first 30 days, we'll pay you back for the balance of the days remaining. If you cancel in your first 7 days, you'll get all your money back.

After your 30-day prepaid period billing switches to post paid." Im within the 7 days but no refund. Im from Nelspruit Mpumalanga.