Did you consider taking them to small claims court to recover your costs?
The nature of debt collection, and many other legal pickles is that if you are seen to be passively ignoring it, then it just ramps up.
Merely asking for proof is indistinguishable from ignoring claims because it leaves no paper trail. You have to actually get documents from them (or from a court) saying that they have no claim. And it costs a lot (whether in time, money or both) to get that.
> You have to actually get documents from them
> (or from a court) saying that they have no claim.
Naturally this varies in different jurisdictions, but generally speaking, the burden of proof is on the person making the claim.If I say that you owe me money, it's not necessary for you to obtain documents (from either me or from a court) stating that you don't owe me money - the onus is on me to _prove_ that you me money.
But you can't ignore it, that's true.