Rain always blaming something els

Been struggling with rain for 3 days now. Made payment but on my account is shows that the account has not been paid yet. Talked to there staff over the phone and FB and all of them still reckon the problem is my router or mobile device, after I told them I have tried everything they told me to do. Everytime I tell them the problem is on their side they give me the same answer(its on my side). I will move to another internet provider very soon!