I’m in a similar situation. Got my start date earlier today for May 3rd, Enroute. I replied right away, even called and left a voicemail with no response. I can’t start because my wife is pregnant and due that first week in May. Fingers crossed that we hear something back tomorrow.
The first class they offered me was way too soon. My POC didn’t get back to me for a couple days when I requested a later date. I guess they have to forward the request up the chain and wait to hear back. But they were very accommodating, so I wouldn’t worry too much.