Suspened / Banned Account

My uber account was arrears which was settled but since then I have not been able to ride. I have been sending emails to the support centre for almost TWO months but there has been NO change. They tell me that my account has opened but when I try to request an uber I get notification that my card is banned and that my account has been disabled. I have sent dozens of emails, I've tweeted them, I have received a response but the only thing I get is a change in customer service agent and no real results. I have been EXTREMLEY patient but no avail and I urgently need this sorted out. the app/service has worked very well for me in the past but this minor hiccup has snowballed and I would like this sorted out ASAP.