Gift Aid - purchase dates & attendance dates

Hi
I'll cross-post this with Fundraising

How do others use the Performance Date on the Gift Aid report? Eg if you are running the report for transactions during July 2023, what would you put as the performance date, given people may be buying tickets some time in advance of their visit/performance? Tessitura have advised us to consider the potential refund situation, which would obviously make the gift aid claim on that ticket ineligible. As a daily admission venue, the majority of our tickets are on the day or close to the day of visit, but some people do buy 3 months or more in advance. Thoughts welcome!

Many thanks
Best wishes
Dawn