First of all we need to know few things for keyword research. before doing keyword research you need to know your campaign type is it Branded or Non Branded. So you will research and create your PPC according to it so Spectrum New sells campaigns are not an issue but when you use Billing keywords Like ( comcast pay my bill, xfinitypayments, Xfinity internet bill, Spectrum internet bill, spectrum pay my bill) etc. these keywords are strictly checked by google. so if you are using US google ads account so its possible to use these type of keyword.
English