BullyBully

As a new member to this forum I'm looking for some info/help in obtaining trim clips. I own a 2006 GS450h,the drivers door trim,the piece that is black with a silver strip attached,has come loose,I think maybe 1 or 2 clips have broken ?Firstly does anybody know the part number or size,and secondly apart from main dealers where can I get these clips ?? I took the car into my local dealers today to have 2 new tyre valves fitted,£224,and asked if they could fix the trim,firstly they said they didn't have them in stock, but secondly I genuinely got the impression they couldn't be bothered, I'd appreciate any guidance on this matter please.Appalling customer service from the dealer. Thanks.