FIDELITY INVEST

Yo yo this was Fid Invest they are KOOL!!!!!!!!!!!!!!!!

Fidelity checking why mail rejected (I an a Customer).  Safe call & I don't think they phone market.

Fidelity Investment, calling back after providing incorrect info.  I didnt recognize this number and almost did NOT answer.  They were very helpful and  I love Fidelity.

Called Cell Phone ( a number which I do not give out)
Web search states that this is a Fidelity Investments number calling . .
I do not have any dealings with Fidelity Investments.
How do I block unwanted calls such as these, which are killing my phone services . . .