No deposit, fodged signature and damage

I hired a car through woodford and returned it on the 6th of January morning. When I droped off the car an inspection was done and there were no damages. When I called few hours later to find out about the deposit I was told the car had a damage on the bumper and I responded with I was not aware of it as we did the return inspection and no damage was observed. The person I spoke to said he will send pictures of the damage (which were never sent). After that phone call I kept on calling to find out about the deposit and there was no conversation about the damage again and assumed it was over as the inspection was done and I never saw any damage. I was then told to wait 7 working days for my deposit to be returned. Today it is the 9th working day and no deposit has been made. When I called today I was told by the client center agent my deposit is not yet done it is with finance as there was a damage on the car. I told the agent I was not aware of any damage and she asked if I signed the incident report (which I never signed) and I said no. The only form I completed was the one upon return. Someone at Woodford fodged my signature on the incident report form I have never even seen. The only thing I have signed was the inpection form. When am I getting my deposit? I circled the car with a woodford agent and then signed but now I am told the car has damages. Why was my signature fodged on a form I did not sign let alone be sent the damage that was never there when the car was dropped off.I am never using woodford services again