can somebody explain what does Medium grain printed calf leather mean? seems like this type of leather applies to most of their wallets from their webstore description.

planning to get one of braun buffel's wallet as they are having some promotions in store now..

want to ask: I bought a bb wallet from zalora previously under bb's official store and now has some stains on it.. can I just bring in to any bb retail store without the official receipt and get it polish without additional charges?