I wanted to send money to my friend. I alredy got the money on my account, so i enter his email, choose the ammout i wanna give him, but "send money" button is blocked and it says to link a credit card, even tho i set balance as my prefferable payment method. there is no any tab with option of changing payment method. i just can't send paypal money. Is there a way to fix it? thank you very much for your help.