Barclays PLC Credit Card Complaint

Barclays PLC Credit card department,

Advertising and marketing California

For several months I have received 2-4 calls per week!, requesting me to apply for a credit card, usually ending with " This is last and final notice. '' But it is n't 'last ' or 'final ' because they continue to plague me. The company is Carnival Credit Card Services, which from the internet, indicates Barclay Bank. I have never requested nor am I interested in their credit cards. How can I insist they stop calling my phone number. I work at home, and it 's a great inconvenience to get up from my desk and answer this call. Thank you.