On December 31, management had determined that it would not be able to collect the $1,200 owed to it by one of its customers. On Jan 15 in the next year, a check in the amount of $600 was unexpectedly received from this customer. Management does not expect any future collections from this customer. The company uses the allowance method to account for its uncollectible accounts. Prepare the necessary journal entry on January 15 to record the events by selecting the account names.