Identity theft still awaiting response from DSV

It has been 4 full days since DSV indicated that they will interigate a driver that is believed to be involved in the theft of my identity. I cannot get through to the guys that called me and they have still not called me 4 days later. I still want to know how all the documnets were forged and the delivery note states that it was delivered at my wotk address when it was not.