Just received an email an hour ago from BCF , I'd suggest to check your inbox to see if you too got the credit :)
HURRY THIS VOUCHER EXPIRES 8th March 2021.
Redeem now and your voucher will be loaded to your member card.
Can be used in-store or online.
I just activated my credit and the website says below
Voucher expires 08.03.2021. Voucher terms apply see website for details.
Edit: Some members reporting $20 Credits you mileage may vary