For Metro Manila Sellers, transaction will be charged when you send a Request For Pickup. After the buyer was able to receive and pay for the item, CheckMeOut will disburse the payment to you (minus the transaction fee) via the bank details that you registered.
For Provincial Sellers, transaction fees will be charged when you sent a Request For Payment to the buyer. After the buyer sends an order form and you decided to sell the item to the buyer, you need to send a Request For Payment to the buyer that includes the shipping fee and your payment details. Once you submit the Request For Payment, this will be tagged as a chargeable transaction.