The seller hasn't knocked that in and you need to get it seen by an expert to repair it. I'm sure the bat can be returned to a decent condition. The cracks will always be there but with some tlc they can be sanded down/glued/sealed up and comestically will look much better. Then get it knocked in. I'm assuming this is some guy on ebay? I was sold a "brand new" bat which had dents in the side, turned out he thought knocking in the edges meant hitting it on the edge! He knew next to nothing about bat care. I got a partial refund and by the time I relisted it in an accurate condition I had a list of 4 or 5 faults, ranging from dents to minor cracks to worn grip to pitted toe to seam marks etc. Also had to be explicit in the description that the bat required knocking in!