Playing the waiting game with Old Mutual

My husband passed away on the 29th January. I received an email from Old Mutual on the 10th February requesting my details as I am the income beneficiary. I completed and returned the forms on the 12th Feb. I was told that the claim would take 7 to 10 working days. When I followed up, I was told that the funds would be paid on Wed the 6th. On Thursday the 7th, I followed up and was told that the tax directive had been received and payment would be made on Friday or Monday. I have just spoken to the call centre and the consultant told me that he didn't know why payment has not yet been made as everything had been done on their side. He said I should call a manager and gave me his number. Needless to say, the manager was not available. I would dearly like an answer as to exactly what is going on and why they are not paying the funds. It may not be much to them, but at the moment I don't have any other income until everything is settled.