ORLANDO, Fla. – Brown envelopes that appear to be some sort of parcel delivery notice may be a scheme to steal bank account information or sell water treatment devices, a News 6 investigation revealed.Reports of vague “parcel on hold” notice being delivered to Central Florida residents started popping up last week but have been delivered to residents over the last few years according to user reports.News 6 obtained a copy of a notice sent to residents in the Apopka area that include two phone numbers with an 877 area code.[TRENDING: Record-setting attractions coming to Orlando | Bacteria halts swan boats | Snake and eggs for breakfast]The numbers make a distinction between English and Spanish but never indicate what delivery service is.