Claim not paid

On 2/12/14 and 11/12/14 I submitted my claims for dr's accounts via fax. I contacted Gap Direct asking how far they are with my claims they informed me that they had not received anything, I again emailed the documents to them on 2/12/14. I phoned again only to be told that they need a Identity document after everything was sent, on 16/2/15 I sent the Id document. Subsequently sending all the relevant documents I have phoned on several occasions only to be told every time that they are busy processing my claim and have I sent in my Identity document. I find there service unacceptable as this issue has been dragging on since December 2014 and according to there contact they claim it takes three months to settle the claim. I am know sitting with lawyers letters of demand from the relevant doctors, but they are quick enough to take your monthly contribution. To date 18 March 2015 I have received no SMS, Call or Email from then as to what is going on