Hi Atanu, You can reach out to the Cloud Billing team via following the "Contact Cloud Billing Support" link provided in this documentation <https://cloud.google.com/support/billing/#other_resources>. You can find multiple channels of free Cloud Billing support there such as phone, chat, community support and create a ticket with the billing team.
-- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To unsubscribe from this group and stop receiving emails from it, send an email to google-appengine+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/google-appengine/5f3ed5de-cc72-4b99-ba74-9813c3579c9fo%40googlegroups.com.
