Even it is still not beyond the promised ETA, customer might contact to check the return status.
Here are steps to check their returns.
FFP Fulfillment (Fulfillment.com / Fulfillment.com_V2)
Open FP's Return or RMA tracker:
https://docs.google.com/spreadsheets/d/1vsJ9Ss2TyLZdaYaJO5Jh0vQRDcCEe6i6IbXS7QKqcGk/edit#gid=0