dbbackup (sku B91628) on my bill even though I have terminated the database

Summary

I am being billed for a database backup in object storage even though I terminated the database, and I can neither see nor delete this from the OCI console

Content

I have recently deleted a number of databases from my tenancy. But in today's cost report, I still see backups of this database (product/resourceId = dbbackupfra/**** and cost/productSku = B91628).

How can I delete them so that I can stop paying for backups I don't want or need (and can't seem to use anyway)?

Code Snippet

lineItem/referenceNo	lineItem/tenantId	lineItem/intervalUsageStart	lineItem/intervalUsageEnd	product/service	product/compartmentId	product/compartmentName	product/region	product/availabilityDomain	product/resourceId	usage/billedQuantity	usage/billedQuantityOverage	cost/subscriptionId	cost/productSku	product/Description	cost/unitPrice	cost/unitPriceOverage	cost/myCost	cost/myCostOverage	cost/currencyCode	cost/billingUnitReadable	cost/skuUnitDescription	cost/overageFlag	lineItem/isCorrection
JuJWQ4WiWb/MkATEhNvhLxuPl/CRK7mbDcaAe3LxodBzoKAycaXuZwSP1gyyZZzdLvpNRALqhmR1eBvZJFgAeU86y0nWKePg	ocid1.tenancy.oc1..aaaaaaaaipgwoysaccyierea2ypvnnoak2hnx4o4jqfdp2qkmqf4yhbrnf5q	2020-10-04T13:00Z	2020-10-04T14:00Z	OBJECTSTORE	ocid1.compartment.oc1..xxxx	****.**** eu-frankfurt-1		dbbackupfra/****	0.0000xxx		**** B91628	Object Storage - Storage	0.****		0.xxxx		NOK	ONE GiB MONTHS STORAGE_SIZE	GB Months	N	FALSE