Unhappy client

I am very disappointed with rain, I always pay my subscription at a retail store, so Sunday 2nd of March I paid at ackermans, however, it does not reflect cause my wifi is off. I call them on the customer service number they told me someone will call me back withing 24hrs but guess what I'm still waiting. That AI robot gave me an address to upload my proof of payment but all I've been getting is email for support ticket since Sunday till now. On Facebook they ignoring me, I don't know what to do anymore, don't even know how I'm going to cancel this damn thing cause they don't communicate, they only call you when you want to join