Terrible service for refunds

I have cancelled Vuma Tel in November 2025 and debit order went off, while I already had another Wi-Fi service. I did not request a refund then, but Dec 2025 they debited my account again and I requested a refund on the 12/12/25. According to them a refund takes 10- 15 days to be processed. Needless to say, I'm still waiting for the refund. This is really ridiculous. They keep saying the matter has been escalated. Be careful of Vuma Tel.