Boston Woods Trust says it will have to start paying for bin collections after the council said it couldn't afford to collect them for free anymore.
The trust, an amenity space run by volunteers, faces paying the fee for its litter and dog waste collections from April.
Volunteers say they were shocked and "horrified" when they were first told about the £12,500 increase in the cost of bin collections for the charity.
The charity is now asking people to donate £20 a year to help cover the costs.
Quote Message: I initially thought they'd got their figures wrong on the letter, I thought they put an extra nought on it. I couldn't believe they want to charge us that amount of money for emptying the bins." from Steve Ellwood Volunteer, Boston Woods Trust