You might get better results by going outside their channels and using legal options. Like not through the courts, but I think some jurisdictions have a law that you data must be deleted if a request is sent in writing or something like that. You might also be able to request they send you all the data they have (though this might cost money because they print it and mail it). I remember someone did that with their Tinder data for some article about how shitty Tinder is, though it depends on where you live.

I used instaloader to scrape about 5 profiles (my friends, ofc i have their permission) every day (was it called story? the 24h expiring thing). occasionally the token(?) saved in instaloader would expire and display their warning saying there was "Suspicious activity" or something, so i setup a simple script to run firefox to login and extract cookies from it every time. Had that running for some weeks and it was permabanned