Block calls by Caller Name, not by phone number

[wingsohot]

No you cannot by name, however you can block all toll free numbers by simply adding the prefix and 7 star signs (example, 800*******). This would block all toll free calls that begin with 800. You may do the same with 855, 866, 877, 888, or any area code.

[Shraddha]

No this is not possible, instead make use of wingsohot's method or ask them to remove you from their calling list.