Ehh, bro/sis... Is that perhaps a contract? If so, then I suggest you discuss it privately with someone u trust :v. Don't post here.
Don't understand this
May1st I suppose all you can do is wait for a response from the sender. You should give them at least 36 hours to respond before panicking. Generally I'd recommend waiting 2-3 business days, but that's up to your discretion. Keep in mind that their business days may be aligned with a different timezone (China timezone which is around noon right now)