lost clothes while in the hotel

We checked in at Road lodge Umhlanga Durban on Friday just after 6, the following morning we went out for a walk and then when we came back we saw that the was someone in the room who took out bedding and towels obviosly it was laundry staff. And then just before 11 we checked out and again checked in for another room in the same hotel. Later on we came back and wanted to refresh and go out and had to look for something to wear, only to find out that what I was looking for is no where to be found, and also my partner had to look if all his things are there again 2 of his items are missing. We notified Reception about the matter, took us to the assistant manager who also could not help us. On Sunday morning we had to rush back to Jhb and we passed by the reception and the assistant manager to hear how are they going to resolve the matter, the was no solution. Then they gave us an email address that we should communucate with the manager, we didi so yesterday but the manager told us we have to pay out of our pockets for the Polygraph Test cs they cannot accuse their employees. Now I dont understand why should we pay whereas we the one who lost thing in their Hotel.