Disappointed and ****en ****ed about Rain

I am beginning to regret why I chose to go for rain and further regret recommending them to my family and friends. In December 2024 at a point of sale, I told their agent at Point of sale that I would pay R625 monthly on a 30 mbps package, however, in January 2025, to my surprise, I'm charged R825. I was told I'm on a 60mbps package, and they told me they will fix it, in February 2025, again I was charged. When Queried it, i was told they will fix it, and now it's Another Month They still charged me ****en R825 and in addition to that in march they debited from any account i never gave them an authorization to, if Rain does not have a desire to fix this issue or is they have no desire to assist can my subscription be cancelled i will return their router ASAP.