Certificate of Residence for tax purposes

Hi, I'm a resident in the UK and I sent a form from France to certify residence in the UK to this address Pay As You Earn and Self Assessment HM Revenue and Customs BX9 1AS. According to the post office, it was delivered and signed for on the 25th June. The form still hasn't been returned to me and I need to send it to France very soon. Could you please let me know how I can contact the department to find out if it has been received and when I can expect to receive the completed form? Many thanks

Hi,
Please contact our self assesment helpline on 0300 200 3310 or contact our webchat facility at Contact HMRC and advise my colleagues that you have submitted a foreign tax form, which needs to be validated and returned to you.
Thank you.