User sent partial payment

I am selling some btc and got this message from the buyer "Hello. I am ready to send the complete amount but the total amount exceeds the daily limit I can send. My max is 2500. I can sent that now and the rest as soon as my timer resets. I will await your approval before sending the initial amount so we both have proof for arbitrator once trade expires. My apologies for delay. "

They did send the 2500, do I release funds now or wait until the timer expires?

Don’t release until full payment.

Yeah, this happens. I guess there is no feature to confirm parts of payment yet in Bisq, but arbitrators are aware of this and are cooperative. You should wait until the full payment is provided before you confirm the payment, as shrike said.