That’s kind of you, Lyn, but we are a virtual business, so rarely receive letters and never physically go to a bank, which would be needed to cash a cheque.
If you enjoy frequenting banks, you could ask yours if they would be able to transfer from your account to ours. We both bank in the UK, so online it would be instant and free, but be careful because in a bank branch, fees might apply. Ask first!
Otherwise, you could give to a local charity on our behalf, and save a lot of trouble!