You can go to the help center on their website and click on the chat with us option to get an immediate response back from buy buy baby’s team regarding your query. The timings to contact buy buy baby’s team are from 7 am till midnight.
https://www.buybuybaby.com/store/account/TrackOrder
The team is available to facilitate you on all 7 days so you do not have to worry if you want to contact them on a holiday as their team will be available to facilitate you at their earliest. The number is provided below:
1-877-3-BUY-BABY (1-877-328-9222)