Violet, They don't answer anytime I try. I am in the same situation sent mine a week before you and nothing. Think it's a joke that people have to contact an MP to get things moving. And the HMRC replies on these forums are pointless as it's the same response (contact the helpline) well mabye if they picked up in the 1st place!
I find the whole thing an absolute joke! Sent off in August. Not even acknowledgement to inform me that the application has been received. All that paperwork which to us is worth so much money value and we don't even know that they have it. I tryed calling the helpline 5 day's a week for 2 weeks now on my half hour lunch break(as I work full time and pay all my taxes might I add) and not once have I got threw to anyone. Its a joke. If your running behind on applications then update your website as it states 6 weeks, giving everyone false hope of getting their own money back to pay off there bills.