No Payment and No response

I claimed an old pension in January of this year and was told that it takes up to six months to process. In August (7 months later) I phoned and was told that my payment was in the queue. In September I phoned and got cut-off 3 times, eventually I spoke to Elma who showed concern and told me she would look into it. I phoned today and got cut-off 3 times and was unable to speak to Elma as the phone went unanswered. It is now 8 months and I worry what has happened to my claim, where is the money, will I ever get it? If i do will I get interest till the payment date? I cannot even get hold of anyone to get a complaint number to be able to approach the Ombudsman. What is going on?