Why is ChatGPT Pro temporarily limited on my account?

PrivateSA: > days of regular but normal usage, I fin I would like to add that I think openai is very generous with their gpt 5.5 thinking heavy… so far I’ve used it extensively without hitting a limitation. So even if I think 15 pro messages is too little, the unlimited (within fair use i guess) or at least high limit for the next best gpt 5.5 thinking heavy, makes it well worth the 100 USD/month so far. That I am grateful for.