Image 1582 is all about calculating his entitlement to a
war service gratuity. The date of 15 Aug 1946 was the end of the qualifying period (the start date was 3 Sep 1939) for the war service gratuity. The gratuity was paid as a tax-free lump sum. The figure in red represents his reckonable service date, ie his last day of service. His reckonable service would have been used to calculate any pension he might have been eligible for, although with only 2 years and 227 days service, any pension would have been negligible.
Turning to image 1583, the reckonable service mentioned there is for the war gratuity, rather than his overall reckonable service He doesn't have any non-reckonable service, but if he had, this would cover time spent in military detention or imprisonment. The final sentence refers to the transfer of the relevant details to the Regimental Payoffice (RP), who would be responsible for making the payment, possibly to the man's bank account or Post Office Savings account if he had one. He wasn't being sent anywhere.
As I say, I haven't identified what CRS stands for, but I doubt if it was just a medical facility, although there may have been medical treatment available there.
