Guests cancellation

Hi Everyone I dont know what topic to pick for this...but anyway.. A guest made a booking on Sunday night for 4 nights (Mon to Thur, check out Friday) this week. But late Monday evening he phoned to say he could not make it and had to cancel. I asked him to cancel it online so it would make the room available to someone else, he said he would but he never did. So I tried to do it myself but all I could do was change his dates for one night (Mon night) seen as I was going to take payment for last minute cancellation. I got paid for one night (Mon night) and later (after mid night) I marked him as a ''no-show'' which I thought would cancel the remaining 3 nights...but it didnt! His room is still blocked off online and I cant re-sell his room online unless I get what I call a ''drive by'' which is someone who just turns up at my door needing a room, but that has'nt happened either. When I changed his dates to one night, I got an automated pop up box that said b.com would contact me in 2 days, no one contacted me, I sent them another message today and it said b,com would contact me in 1 day....aww lads I cant be waiting all week!! Is everyone in b.com office on vacation this week ??!! Anyone know how do I un-block that guys room for tonight Wednesday and Thursday night this week so I can re-sell it. I only got paid for Monday night. Thanks in advance for any help.