When you check your bank account or card statement, you may see pending payment authorizations. These authorizations are so that GOLO can make sure that the card is valid, and to check that you have enough funds in your account to make the purchase. These are authorization requests and not charges. You don't pay for authorizations.
They will be for $0.08-$0.10 and the billing descriptor might be NBX*GOLO. Authorizations may stay in your account for 1-14 business days depending on your bank.
If you still see the pending authorization after 14 business days, contact your bank for more information.