Got a "Credit" showing up on Reservation

[RCLFan]

I know often, there are discussions about the Poor IT Dept at RC, and how on occasion they show additional charges on your Reservation (and in fact that happened to me a number weeks ago). But Now, for my upcoming Sailing, next Weekend, I'm seeing a Credit on each Reservation of approximately $700.00 per Reservation.

 

Has this happened to anyone else recently, and is it possible they applied a Credit automatically due to some better Sale than that which I used when I originally booked the Cruise?

 

Or is it their "crack" IT Dept messing up AGAIN?

 

Thanks

[RCLFan]

Disregard my question, I see another Post asking about the same Subject - Sorry for not Reading.