Lenders keep calling after you have a payday consolidation

I have a payday company that is working with me because I had gotten 4 payday loans and I could not pay them back and I keep getting calls from the lenders and I was told they they are not to be calling me since they have the letter from the payday company. What am I supposed to do to have them stop calling me? I was told to ignore the calls but they are constantly calling me and it is annoying. they are calling me everywhere like work, home and my cell phone