I'm not going to engage a collector. They aren't part of the 2-party agreement, they have no rights to any information about me, and I'm not going to give more of my personal information to some 3rd party idiot just because they asked for it.
Pro tip: Never give private businesses your real address or phone number. Make sure they only have your e-mail address. They aren't the police, and don't need to know where you live. If there is a dispute they must engage with you directly by e-mail. If a business needs your credit card billing address, change the street address, as long as the city and zipcode are correct it will usually work.
I see Adobe as equivalent to a grocery store, they're just a business and don't have a legal right to any personal information, I could totally manifest to them as an avatar and pay for services with an anonymous Visa gift card.
Are collectors so toothless over there? Here a valid collection is an easy win in courts if it's not paid, and then it can be garnished from wages, pension, other income, or your property. Collections absolutely can not be ignored here.