The sentence confuses me. It doesn't make sense: I want to change 800 yuan cash also credit card. My best guess is that someone wants to put 800 cash on their credit card? What is the correct translation?
the translation is : I want to exchange 800yuan, Cash, for paying back my credit card.
should I change RMB or US dollar?
this sentence is very confusing. maybe you should ask again, what this person really wants to say.
How do I write down 10020?
一千00二十 or 一千0二十。 So basically 1 or 2 times a 0?
1 time 0. should be 一万 ，not 一千