You call lazada first on their hotline tell them about your concern then if you didnt get a return slip or return piece of paper ask them to send you one in your email so you can print it up then fill it up and then bring it back to LBC including that paper wd your damage item. Theres no fee for returns you dont need to pay for anything. Just one advice next time you receive your item open it up infront of the delivery guy dont pay yet open it first and check your allowed to do that. Thats what i do everytime they deliver exept this one time that i did pay through credit card and then i didnt check before i let the delivery left so it was missing one item and they forge my signature and up until now no refund yet but they say they will. So another advice DO NOT PAY USING YOUR CREDIT CARD ALWAYS USE COD if COD is not available never purchased in lazada. Hope it answers your questions

Inspect for a few minutes in front of delivery man before accepting item(s) and paying COD only. Only if 100% satisfied.

I think that is free. But try to read again the return paper. Just fill up the form. I never return my order I just threw it in the garbage coz Im lazy.

If item is damaged or defective or wrong size, etc, return is free. Just fill out return form, pack item with attached return form and label that you received with shipment. Also, good idea to call Lazada customer service before returning.