This offer is still going strong from a mature and differentiated company (IMHO). Here are the details I found:
All setup all within about 10 mins and £15 paid! £5 deposited from debit card and invested in that time as well. No KYC just, address, mobile and full name. I went for Planet, Balanced in a GIA. £15 credited to the account and invested. All payments appear to be by Debit card continuous authority (like Chip) so not sort code and account number and not DD.
A few other useful features including Monthly Top ups, Round Ups (uses Open Banking), carbon offsets and "exclusive rewards" (money off). Clearly they want you to invest and add to your investments over time. Do not withdraw before 90 days (a condition of the incentive). Fees are £1 per month (on the 10th) and 0.5% of the invested funds. These fees are taken from the £5 deposited so clearly favour larger investments and are not the cheapest but they are offering a specialist ESG service so it goes with the territory I guess.
Here's the referral text so please get in touch for my link:
Hey! Want to invest in your future and the future of the planet? Use my link to get £15 when you sign up to CIRCA5000 and deposit at least a one off £5. Account must be held for at least 90 days
Please drop me a PM for a referral link since Circa5000 may not like me publishing mine directly on here. Also, please get in touch if you have any queries or questions about this style of environmental investment.