Its the time off year to renew your tax credits and if have to make the call like me its a pain.
Hmrc want you to call 0345 300 3900. If you call this number you have to go through options and waffling then put in a never ending queue.
Now call +44 1355 359007 this is for the same office but no queues no options and answered srraight away.
BUT BEWARE
This number is for overseas callers only they will ask you if your in this country and if you say yes they will hang up, so pretend your away and watch out cos during the conversation they will try and catch you out.