Is It Still Normally 28 Days?

To return an unwanted item? Just wondering if big Bangura the new Henrik is stuck with them or whether Peter might be looking to get some money back since any prospect of Champions League revenue looks to be disappearing for another season? I know its normally 28 days if you keep the receipt and the purchase is in good condition, so maybe his old club will accept this. Stokes will be hoping so, how must he be feeling with so many players being preferred to him when he has a better record than any of them?