Rain billing and unprofessional rude agents

I traveled beginning of December, I didn't pay for the subscription,now last week on the 28 ,when I came back I got an sms to pay half of my monthly subscription and pay other half later.i did so on the 28th of December now on the 4th day after payment my subscription is suspended,I called spoke to an agent that hang the phone on my ears call second time the agent told me he's sorting the issue out with out asking any of my details and muted the phone till he hang up again,called 3rd time "mind you I hold to speak to these agents 5 to 10 minutes, the 3rd checked and sow the payment o made and promised that after 30 minutes my subscription will be back ,its now after 5 hours it's still not. Now I don't understand if the half amount of my monthly subscription I was asked to pay was only for 3 days?Rain need to work on this and when you do all these half payment ,have your systems and agent in order. This is so inconvenience