They take 10 days as standard now.
This is the timescale I have been experiencing. I did query it with CS, and they confirmed that it was now 10 days for "larger withdrawals". However, I have experienced what I consider to be "small withdrawals" also taking 10 days.
A £700 withdrawal early last year was treated as a "large withdrawal", and sat in pending for 10 days before being paid promptly on day 11.
From this, it seems that withdrawals are paid the next working day after they have left pending, so looking at Cashcheck should allow you to track progress. Documentation is often not requested until a withdrawal leaves pending, so this is why you have neither received payment, nor a request for documents.
If you check via Cashcheck, what is the current "day 3" status showing as. If "work in progress", then you will receive it today or tomorrow, and it will be treated as a "small withdrawal", and dealt with within the 48 hours as stated.