I order a lot of wire and cable from bestboatwire.com. Recently they have been out of quite a few sizes of wire and cable. Asked when it would be in they said 4 to 20 weeks. I bought it on Amazon and had to order a spool of 25’ to get the 4’ I needed of 1/0 cable. Lots of things are out of stock now not just wire.
If you are one there is no explanation necessary.
If you aren’t one, there is no explanation possible.