From the US, donate via check or money order:

Make payable to:
Big Life Foundation USA

Mail your contribution to:
Big Life Foundation USA 
1715 North Heron Drive 
Ridgefield, WA 98642 
USA

Big Life is registered in the USA as a 501(c)(3) charity (EIN 27-3455389). Donations are tax deductible as permitted by law.

From Canada, donate via cheque or postal order:

Make payable to:
Big Life Foundation Canada

Mail your contribution to:
Big Life Foundation Canada
17474 Humber Station Road 
Caledon Ontario L7E 0Z2
Canada

Big Life Foundation Canada is a registered charity with Canada Revenue Agency (corporation # 812720-4, charity # 82252 3288 RR0001).  Donations are tax deductible under applicable laws.

From the UK, donate via cheque or postal order:

Make payable to:
Big Life Foundation UK

Mail your contribution to:
Big Life UK 
c/o Chapel & York Ltd 
Unit 12 Ladycross Business Park 
Hollow Lane 
Dormansland 
Surrey RH7 6PB
United Kingdom

BIG LIFE UK is a Charitable Incorporated Organization (CIO) (charity #1158772). Donations are eligible for Gift Aid.