We went and visited the old address and the lady living there told us that she had received a parcel pick up notice ages ago but couldn't find it now. We also emailed the seller and he wrote back last night saying that there was in fact a tracking number so i rang the post office a few minutes ago and they were able to locate the parcel. Turns out it is due to be 'returned to sender' today, but they will hold it so long as we pick it up today.
*fingers crossed* it will still be there this afternoon after work and i will be able to report back that i have received it and let Namus (and everone else) know what i think of it.
Great way to start a friday morning