yup, that''s the way I read it....so the single would be cheaper...
I don't think the single would be cheaper. The cheapest option appears to be buying Cosham to Chichester but using the "You may start, break and resume or end your journey ..." rule to start at Havant.
The options appear to be:
1. Cosham - Chichester return ^4.45
2. Havant - Chichester single ^2.25 plus Chichester - Cosham single ^4.10 = ^6.35
3. Havant - Chichester return ^2.65 plus Havant - Cosham single ^2.40 = ^5.05
4. 7 day season ticket ^32.60, i.e. ^6.52 per return (more expensive as my railcard doesn't have a minimum fare in July and August)
Cheapest appears to be just the straight return. The reason I'm questioning over such a small amount is that over 12 weeks (which is how long I expect to be making the journey), the 90p per day would have come to over ^50.