I have an i-Candy Peach pushchair frame. I'm trying to buy the carrycot bit online, but I seem to have options like 'Peach 2' and 'Peach 3'. My store receipt just says 'Peach', I have no idea whether I have a 2 or a 3 or a what. Is it going to matter? Am I going to find that I have to have the actual specific number the same, or will any Peach carrycot fit on a Peach frame? (The latter seems logical, but I'm already having to return a Maxi-cosi carrycot that I thought would fit because I have adaptors that make the Maxi-cosi carseat fit. Turns out it doesn't work like that and I really don't want to make the same mistake twice!!)