Complaint regarding poor service and incorrect billing with RAIN

I'm writing to express my frustration with the services I've received from RAIN. In October, I signed up for a monthly rolling plan (no contract) for Wi-Fi services. Within a week of receiving the Wi-Fi, I reported poor network connection via WhatsApp, stating I was mostly getting 3G instead of 4G/5G.

You advised me to return the Router and created a ticket. No one followed up, and the Wi-Fi was switched off in October as I refused to pay for the unsatisfactory service.

Despite this, I've been receiving calls from RAIN agents demanding payment. I've explained the situation but the issue persists. I'm now being told I owe R1200, and additional charges are being added monthly.

I don't understand why I'm being charged extra when it's a month-to-month plan and the service was poor. I was told I couldn't cancel due to an outstanding balance - why wasn't the Router taken back in October?

I'm also receiving harassment calls day and night about the outstanding amount. Why are charges increasing on a monthly plan with no contract?

I plan to give RAIN a 1-star review due to their poor service and network quality (usable only at night).

I expect this matter to be resolved promptly.