I could understand it if it were a fixed price with occasional discounts or seasonal variation etc. However..
£23 each way if you return in 1-2 days
£55 each way if you return in <5 days
£159 each way for open departure and open return within 5 days (fair enough to cost more for the flexibility)
£73 each way for trips >5 days
£204 each way for open departure and open return >5 days (OK now they're taking the mick again compared to <5 days)
and then a discount for 'frequent travellers' which is fair enough.
So apparently, it costs the Eurotunnel over three times as much if you plan to stay abroad for a week instead of overnight
Even better, if you make a one-off trip abroad it will cost you more than 50% more than using their service twice within a couple of days!
£23 each way if you return in 1-2 days
£55 each way if you return in <5 days
£159 each way for open departure and open return within 5 days (fair enough to cost more for the flexibility)
£73 each way for trips >5 days
£204 each way for open departure and open return >5 days (OK now they're taking the mick again compared to <5 days)
and then a discount for 'frequent travellers' which is fair enough.
So apparently, it costs the Eurotunnel over three times as much if you plan to stay abroad for a week instead of overnight

Even better, if you make a one-off trip abroad it will cost you more than 50% more than using their service twice within a couple of days!
