newbie question: identifying returning queries in a speadsheet

I have a spreadsheet of clients with the time and date of an initial enquiry. I need to be able to identify those clients who have made a second query within:
1. 1 day (or 24 hours) of their first call, and
2. 2 days (or 48 hours) of their first call, and
3. 5 days (or 120 hours) of their first call.
Ideally, any clients falling into any ofthese categories could be placed on one of three columns.
Any help really appreciated
Vin1602

Hi Vin1602, I see no one has

Hi Vin1602,

I see no one has got back to you on this one, can you please provide a sample sheet, if you are unable to do this can you confirm if you use reference no's for individual queries or do you only have your client's ID as a unique Identifier?

Regards
Mark

identifying returning clients

Hi. I made an error (apologies) in my original post, such that the infornation i have is: Col A = client post code (a UK postcode), and col B = date of call.
i would like to be able now to idenytify those clients who have made a second call (identifiable by post code) within the time periods:
a. 1 day
2. 2 days
3. 5 days.
is this do-able?
many many thanks
should i re-post this is the general forum?

Almir's picture

Have you managed to solve this?

If not, send me example data.