I am using chatgpt dotcom. My company acquired a product in 2019. We rebranded the product and the new web pages are available since 2020. However ChatGPT seems to still show old name of the product. How can i ensure that ChatGPT show the new product name?
Thanks
Are you using the API?
Are you using Agents?
Are you using a custom GPT?
If none of the above, then it is outside of your control. 
I am using chatptdotcom which is public. Does the following page not apply to chatgptdotcom? The page seems to suggests that either GPTBot or ChatGPT-User or both allow crawlers to control crawling of websites for better results.
Well, you will need to wait until OpenAI crawls your website again with their bot, the knowledge of it won’t change instatly when you change the site, this can take anywhere from a few weeks to a few months depending on when OpenAI crawls your website.
Furthermore, it is not guaranteed that it will “overwrite” the old information it already learned.
It’s pretty much out of your control.
If you want an AI to have up to date information, I recommend making your own AI or play with existing ones while using RAG. (For example with llamaindex)