previous tenant keeps getting parcels delivered here

[gallifrey]

and she moved out in september! I've had about 6 things delivered here for her, you would have thought she'd have changed her bloody address by now!
I have no way of contacting her and don't know where she lives. This morning just had someone knock on the door again, so this time I refused to take it in as it wasn't for me and told the delivery guy she had moved. This was an identical parcel to the one that came a couple of weeks ago, she has obviously complained that she didn't get that one so they have sent out another one to the wrong address again!!!!

Don't accept them.

You are not obliged to return the items (which are effectively unsolicited goods....which you would be within your right to keep after a certain amount of time).

I don't need much encouragement....!!

in that case, I would write a letter to the agency stating that there is a number of parcels at the property and if they are not picked up by they will be binned.