Botched authorisation

I sent in documents for authorisation of a procedure in doctor's rooms. All documents, motivation and tests were provided. Asked for authorisation for 28 Jan, 31 Jan, 2nd Feb and 4th Feb. I had to call a number of times to enquire status. Call centre agent kindly phoned me 27th Jan to say authorisation was provided and gave me the authorisation number. He said I would get an email. The email only arrived on 31st Jan (3 days after the appt date). Even worse, the authorisation dates were 26th to 28th Jan. Where did the person authorising get these dates? I called again to query and have still not got a resolution. My appointment is tomorrow!!!!! Momentum really needs to get their systems in order and train their consultants