Please advise on how to reclaim the ITC

Hello there, we were running our website ad through Google Ads, but we entered the incorrect GST number, which was printed on the invoice and was not reflected on GSTR2A. So we contacted Google support, but they responded, "We would like to highlight that due to system limitations, we are not able to modify any invoices generated on accounts using automatic/manual payment methods." Please advise on how to reclaim the ITC.

Regards

Dinesh