Unpaid Utility bill and a Notice of Seizure of Goods

Tenancy Deposits

Hi to all. I have just got back a house which had had a good tenant in and he left amicably last week. However, since then I have not been able to contact him to meet up to OK the place so I can arrange to give him back his deposit (I wasn't there when he moved out).

Then...While at the house yesterday there were two letters for him. I noticed that one was in a window envelope with "Notice of Seiz(ure was hidden)" showing. I therefore opened it and it appears that he owes £260 for some goods and that they might bring bailiffs round. Obviously he's not there any longer.

However ALSO there was the utility company's letter there in red. I opened that also, as I don't have any forwarding address or anything so I wanted to be clear as to what is outstanding (for deposit purposes). He owes £360 approximately, plus another £120 after I rang them with the final meter readings... Therefore just the utility bills come to what he deposit is approximately (£525). Do I pay the utility bill on the property out of his deposit if I can't find him? Or do I return the deposit and let him sort out the debt ie. is it my responsibility if he's not around. AND what do I do regarding the notice of seizure when he's bought goods and not paid for them??

Many thanks