Hence the problem with number blocking. It's a reactive strategy which does not address the problem at its source.
As a commercial fundraiser, MDS is expected to honor an internal no-call list and add any number upon request. Break that order, the FTC declares, and ''the telemarketer may be subject to a fine of up to $16,000.'' They are also covered to a point by other regulations for telepests, so you can kvetch about abandoned calls, bot calls to mobile phones, and so on.
File complaints with the FTC and attorneys general, and the charity group doing the hiring. When the boiler room calls, try getting on a master ''no-call'' list for all of that firm's charity clients. (See more discussion under this number: 901-881-9984
) If a given commercial fundraiser seems deaf to your demands, and/or merely renews its pestering with the next campaign, turn up your volume on paper. Send a cease-comm notice via USPS Certified with return card. It need not say more than to stop calling and writing whatever numbers and addresses you want protected.
A charity call campaign must usually be cleared through some agency or regulator in your state, and many states make activity reports available online. They often reveal a specified period of weeks or months in which the group is permitted to solicit, sometimes tracking well with the observations on these call forums. Find those reports and you'll find one more desk to advise of your displeasure.