Hi Murtaza,
Thanks for reaching out. You would be able to check the monthly spending by querying the Cost metrics from the Account Performance report. However, it is not possible to retrieve the card number details from any reports. I have raised a feature request to support the retrieval of the card number information. Please keep an eye on our blog for the announcements and updates on the new releases.
Thanks and regards,
Xiaoming, Google Ads API Team