Have dealt with LAZADA over 6 years. Refunds IF you use credit / debit card are between 2 hours and 6 to 10 days, depending on problem and vendor.
ALSO with a credit / debit card you have ANOTHER venue to challenge the charge, the card issuer.
One time I used COD, I had a problem getting my money back, NEVER COD AGAIN. 600+ purchases, ( 1 ) one gone bad - I think a good record. ( 1/6 of 1% of purchased items )
I have had a vendor call me to ask if I wanted to cancell OR accept another item ( 100bt more costly ) for same price since the item I ordered just went out of stock due to many orders - I buy from them when possible.
USE A CARD, NOT COD.