Warranty claim approval

Its been two weeks i have taken my car for a warranty claim, i am having with speaking with the consultants handling my claim, i have been in contact with the mechanic who is waiting for approval as last week Thursday an assessor was sent and a new quotation was sent which apparently Shauwn is waiting for management approval, i am told i am not allowed to speak to management as my complaint is i am using the car and its been two weeks where there is no answer on when will this be approve