TerraMiner IV – 2TH/s, Networked Miner (December Batch) $13,999
TerraMiner IV – 2TH/s, Networked Miner (January Batch) $5,999

https://cointerra.zendesk.com/hc/en-us
"Price Protection

For any undelivered orders in Batch 1, if CoinTerra changes the price of TerraMiner IV systems or GoldStrike1 ASICs before delivery, CoinTerra will re-price all orders and offer either a cash refund or a larger and more valuable hash power credit"

It looks like the TerraMiner IV now costs much less.

When can we expect the repricing of orders or a valuable hash power credit?
Or are you trying to find your way out of the promise you made by just renaming the same product, and calling it a new thing?

It's not even like the "early January" delivery is any different than December delivery + up to 30 days allowed delay.