My name is Matt Marshall, I work with Nubill Corporation (http://www.nubill.com). On a near daily basis we have people call or email us asking about unauthorized charges by "nubill.com." As we are B2B business that does NOT process consumer credit card payments under any circumstance, we were very concerned to see all of these complaints coming our way.
However, with minimal research we found that ever single one of these individuals were in fact contacting the wrong company, and the web site/company they were looking for was nu-bill.com (notice the hyphen in their domain name), NOT our company's site nubill.com (without the hyphen).
For whatever reason some credit card companies strip the hyphen ("-") out of the nu-bill.com domain name, leaving it as "nubill.com" (our company's domain name) on their credit card statements. Please contact nu-bill.com to have these charges explained and/or resolved.
I hope this helps.