Just one questionable experience.
High-street agency “renewals negotiator” emailed us about renewal on June 21. The cookie-cutter email contained this paragraph:
If you wish to extend your tenancy, then there may be a charge to you for preparing a new tenancy paperwork, which will be £210 (£175+VAT) and this is due at the time the document is sent to you for signing. This will be due if you have previously agreed to pay such sum in your current tenancy agreement, or if your tenancy is not an assured shorthold.
Helpfully, bank details were included!
Payment can be made by card and by telephoning us on xxx. Alternatively you can make a bank transfer using the following details: […]
There was no mention of the fees being illegal.