TFG non stop marketing calls

The TFG Group has made it their goal to harass me on a daily basis without end. I get between 10 and 14 marketing calls from them alone per day. I have logged 2 calls in the last week with Customer Support to please remove me from their marketing list. No luck. I block one number and they phone again, numerous times. I that does not work they just phone me from another, and so it continues the whole day.