Tired of hang ups and ***********s

Im not sure if this company is legit. Every time I get an different amount to the settlement amount. Then after 4 years on 26/7/2018 they realised I have been paying someone else account. But now the sorting out falls on me as according to them that account has been closed and they can't give me any detail I need to get proof of payments since 2014. They cut you off half way through a call put you on hold for 25 minutes. I told them I recorded phone calls but they are just not helpful at all and the person on the other side kept telling me to hold on I have to ask my manager and on hold I am again. So what to do as my phone bill is through the roof no one wants to help or answer any e mails. My money is lying in their account why haven't they picked it up that the ref is wrong journal money towards my actual reference number. After 3 days of struggle and getting cut off I'm still nowhere. No answers to my questions no help on my queries and no airtime. No e mail statement of any sorts. But harrising phone calls that can make but as soon as you lay out your problem you get conveniently cut off. No I don't want a clerk to call me cause they just put me on hold to ask the manager the answer which is still no answer, but he will look into it. Next day another 8 calls pay pay pay but I have a query OK please hold well get back to you, uhm OK I'm still waiting do you actually have a system do your operators make notes or do they just get a list and call cause they get paid per how many calls they make per day target work. Yes I am being sarcastic cause I'm fed up. So can an competent person please email me ask me for my details and call me.