Hours to fix an error code

I have been calling and ii finished my airtime. I would like to clear an error since morning my other decoder was immersed in water and now ii changed it into another one and ii was told the error will clear within an hour now its been 6 hours and still have the same problem and the error is E30-4. I don't know why did ii have to pay my subscription if I have to suffer cause its like i paid for nothing. And bad customer service. The whole day no access to my DSTV