Rain still debits my account, despite cancelling

On 17 November, I tried to cancel my subscription with Rain, as I no longer require the service. When I try to cancel my subscription online, when you go to services on their profile, the page simply hangs and you have no choice but to call the contact center (ironic for an internet services company). When I phoned an agent, I was assisted, and was provided with an SMS confirming the cancellation. Despite this, I am still being debited from my account on 31 December 2025. Further, when I look at my online profile on Rain, it indicates that no cancellation was ever effected, and I am still due to be debited in the future! This is terrible service, and sad that Rain has made the process so excrutiating!