Adidas — Refund on a product

Website:

Adidas

I made an order on the Adidas website a while ago and the size was too big for me so had to return the product, It was returned on 16th of August at 9:37 pm. Today is 22nd of august, 6 days since the return was made. I haven’t been asked for the bank details yet. But I get mails saying that my refund will be processed in 7 days, how will my refund be processed in 7 days when it’s been 6 days already and I haven’t been asked for my bank details yet ?? How do I get my refund now ?