Has anyone managed to get EU data residency (and approval for abuse monitoring controls such as Modified Abuse Monitoring or Zero Data Retention) on their API account?

A UK SaaS platform developer, whose services are used by the public sector, is exploring LLM integration, specifically with ChatGPT's API. A key challenge is the requirement for EU data residency, as data cannot be processed outside the EU. The developer is seeking information from the community regarding successful experiences with obtaining EU data residency options and approval for abuse monitoring controls like Modified Abuse Monitoring or Zero Data Retention, including timelines and potential pitfalls.