not issuing my experience letter

Location/place: new delhi

Name of company/service: dr. doda diagnostic centre pusa road new delhi

my name is govinda, i was working in dr doda diagnostic and healthcare (pusa road, new delhi)from 23 september to december 31st 2013, now i want my experience letter for applying in government job, but dr. Shyam Sunder Doda clearly denied for giving experience letter.

please do my help as your organization can do, Please please