Season ticket refunds are calculated using a base rate which is usually the weekly season ticket price, or if there is no published weekly season price, the base rate is the monthly season price divided by 3.84, rounded
up to the nearest 10p. The base rate is then used to calculate differing season ticket periods by multiplying that base rate by a factor determined by the amount of usage the ticket holder has had from their Season. The base rate should be the prevailing weekly season ticket price (or equivalent monthly/3.84) available at the time the monthly or longer season was purchased.
Cholsey - London Terminals Monthly Season at 31st December 2011: ^344.10
If you were to return your Annual Season ticket tomorrow, 13th August 2012, you will have had 8 months and 13 days use of it (31/12/2011-12/08/2012). That period requires a multiplication of the base rate by 32.39 (see table below)
Your base rate is ^344.10/3.84 = ^89.70 (89.609375 rounded
up to the nearest 10p)
Base rate ^89.70 x 32.39 period multiplier = ^2905.40 (2905.383 rounded up to nearest 10p)
Refund is then the price paid for Annual Season (^3584) minus ^2905.40 minus ^10 admin fee =
^668.60As a 5% reduction was offered on the Annual Season when purchased then I'd expect a 5% reduction on either the base rate or the total of base rate x 32.39 period multiplier. That should still give a refund figure in the ball park of
^668.60Table for calculating multiples of base rates for season ticket periods from 1 month to 1 year (extract from NFM98):
I believe ticket clerks don't have to perform these calculations themselves, their
TIS‡ does it for them. I'd be interested to know how close my maths is to the actual refund given. Do let us know cholsey! Oh and let us know the date you apply for your refund.