After many an internet search, I finally found a place that recycles cardboard and white ledger paper (especially the A4 sizes used in photocopies). Unfortunately they do not recycle newspaper.
Caribbean Container Inc. (Tel. #: 265-4224,265-4247-9,265-4250) are based at Farm, E.B.D. and can offer collection services or you could also take your paper waste to them. They even pay you for your paper waste ! (Yes, this may sound unusual for someone coming from a developed nation). They recycle the cardboard in Guyana but send the paper overseas.
Had I known this a few months ago, I would not have let all my cardboard waste become part of Guyana’s landfills.