Why would my asda online shopping account be suspended?

I went this morning to do my next weeks shopping and i cant log in it says my account as been suspended there is a phone number to phone so i shall phone them after christmas as at the moment we are ill just dont have the time. Anybody got any ideas why they would suspend my account, as its never happend to me before|||its maybe a security measure regarding bank details , they are probably protecting you .|||Did you try and jump the delivery guy?|||why would you ask this on P%26amp;A?|||Someone else trying to use your login, maybe your card details need updated, a quick phonecall to them will sort it out i'm sure!