Originally Posted by frankiwa

That's not for existing accounts. Only for new accounts.

As for your original question. They are a merged company. So yes, you can deposit your money into a new account with tdameritrade, and then get the points. There is no need to transfer funds to Thinkorswim since they are the same company. Just log into thinkorswim and your TDameritrade funds will be there. You have the option of which platform you can use in either tdameritrade format or thinkorswim format.

For example i have funds with TD ameritrade. I can log into thinkroswim and my funds show up there as well in the same amounts. Just pick which platform you want to use, or just seamlessly switch back and forth.