Turn around time for CGT Forms sent by post

I am assuming that the PPDCGT form that I sent by Royal Mail has arrived. It was posted on 27th July by registered next day delivery, but have not had a reply yet. What is the current turn around time please?

Hi David Jones, 
We aim to deal with all returns within 10 weeks of receipt.
Thank you. 

If I'm supposed to pay within 60 days, but it's taking ten weeks to send the X number, I assume I won't be penalised?

Hi
If HMRC receive the paper capital gains return within 60 days of the completion date, there will not be a late filing penalty.  
When my colleague manually processes your paper return, they will generate a repayment reference number and will write to you, to advise you of the payment reference number.
 You will have 30 days from the date the reference number is created for the tax to be paid, in order to avoid penalties and interest.