Tax Residency Certificate - requested start of May and still not received...

Tax Residency Certificate - requested start of May and still not received... as per the title - I had an email that says: HM Revenue and Customs (HMRC) has received your request for a Certificate of Residence in the UK. Your reference is XXXXX Your request for a Certificate of Residence will be dealt with as soon as possible. If you're not entitled to a Certificate of Residence we will tell you the reason why. If we need any further details, we'll contact you by letter or phone. We may ask you to sign in to a service to provide more details but we won't ask for your personal details by email. You’ll normally receive a response within 15 days. Yours sincerely, HM Revenue and Customs -- And I've had nothing since - this is now an urgent thing - does anyone know who I need to contact? TIA!

Hi ,
 

You should have had a reply by now. Please telephone 0300 200 3310 to chase this up . Thank you .