Very bad Service from C Surance

I am disgusted with the service I have been getting from C Surance. My Cellphone was ******t on the 26th of May. I contacted them on the 27th, first they said my device is not covered with them, I sent them my subscriber agreement as well my tax invoice which reflects which device is insured and that I am paying for it. They came back and sent me to claim forms. I completed the claim forms and submitted, They came back and said they do not have the IMEI number on their system, then I sent proof of the IMEI number on the box and they then requested for my claim forms with the affidavit and ID copy. I have now sent My Subscriber agreement contract, My Tax Invoice, my Affidavit, Id copy as well as Claim forms. They are still asking me to send the documents over and over again? I am really not satisfied with the service I am getting from C Surance. Please see Ticket No.905579, Ticket 423596, 252115, 000191. After all these case numbers I am still not getting any Joy. In the meantime, I pay every month.