Hi Liz
Apologies for the delay, the time you need to keep for is a minimum of two years from the date the customer ceases to be your customer.
Attached, and under useful information is the last known version (that I have) of the CCeS guidelines and on page 18 it provides the timeframe.
Like others we have digitised all of our past rebate applications and electronically store all new ones since 2009.
I hope thi is helpful.
Regards,
Andrew
CCeS Procedural Guide
