I think when we first join the scheme we all know very little indeed and this forum is a big help and source of info.
Although some info is a personal choice and one can cancel right up to when to enter the pin, but i’d find that very hard to do for a few reasons the main one there only a few dealers that are local to me and they always been great(The oners i have used) bmw audi and mercedes are not local so they non starters for me just because of servicing etc and it fitting in with life having kids still at school etc and I’ve never cancelled one order as yet and only because of covid and the 1st lockdown was there a delay in exchanging to the new car after the 3 years are up, you order 3 months before and always been ready i have been firm on that to them..
I have always got some paperwork when i placed an order and often also emails so that i find very strange indeed that you got nothing at all. no wonder you confused and wondering if the scheme is for you..
I’d say it’s that dealer and it seems some bmw and merecedes dealers are not so great and i have heard of alot of people having the same issues and alot of the time it’s the same group or dealers. they say this and that just to get the sale but then do not keep to the order date or even place an order as so i have heard they need to have build slots and have non or give your slot to another customer whom buying using finance so they make more £££ from the car often on cars that they offered say £500 off the ap on.. So sad indeed..
personally it being your 1st car you maybe able to get a stock car quicker but that may mean limited choice on trim and colour combos available and no joke you could be in one of those in 7 days to 2 weeks. So that maybe something to consider if and when you do cancel..
Please feel free to ask for more info and let us know how you get on so we can help you more..