Closing account error: You need to cancel any paid services or Microsoft Points account associated with your Microsoft Account

Hello,

I want to close my Microsoft account as I do not use it anymore, however when I try to close it I get the error message 'You need to cancel any paid services or Microsoft Points account associated with your Microsoft Account'. 

This account used to be associated with my Xbox live Gamertag but I have moved it to another and I have no services or MS points associated with it. I would be grateful if you could please help me delete it?

Many Thanks

Nick