Terrible customer service and refund policy + incorrect billing

Terrible service in my area, terrible customer service when it comes to refund. Policy says if i cancel a service within 7 days from activation of SIM, then I should get full refund.

I paid upfront for the service as a foreigner, since am not allowed to activated a sim online without an SA-id. Within a day from activation, the service was terrible in my area and I cancelled the service same day of activation. Contacted RAIN via their ticketing system, to request a refund, and one agent acknowledged and advised I was to receive a full refund in 4 days time.

To date it has been 30days and still no refund and i keep getting an agent who starts interrogating me about the same matter that is written clearly in their ticketing system. One even had the nerve to state that I no refund was due to me as i was charged for the month of April 2021, a month in which the service had already been cancelled in March 2021.

RAIN - my last reference number or ticket id is ***. Please refund my money.....