The primary way to access donation funds from campaigns that you have published from your LT Give account is by accessing them from the bank account that is linked to your PayPal account.
Funds can be transferred from your PayPal account to your bank account via the following options:
"Auto-Sweep" funds from your PayPal account balance to your linked bank account by calling PayPal Customer Support. Please review PayPal's support article regarding this: https://www.paypal.com/us/smarthelp/article/FAQ3758
After funds are have been transferred from your PayPal account to your bank account, you can access them how you normally access funds from your bank account (IE - bank transfer, withdrawal, check, etc).