Betfair....help please

I have just recently joined betfair, i have found it quite a decent site, you can bet each way, although it has a minimum bet of £2.
I have to confess i dont know what to lay means, although i have seen the option to bet on it on the site, I'm not to sure about putting horse and football accumalators combined, but i know you can put football multiples and horse multiples on aswell as other.
The best thing about betfair has to be how easy it is to bet in play and how easy it is to navigate it.
If you do decide to join Betfair would it be possible if you used this promotional code: RQVMTPT4H . Hope this helps

what does the promo code do?

Its a refer and earn option, everyone who is a member has one, i think if you put that code in then we both get a reward, as its something you use to recommend a site. Its no bother if you dont want to use it though, also you can definitely do football accumalators on it.

of course ill put it in! no worries.

Laying on Betfair , if you Lay a horse at 10's and say put £10 on it to lose if the horse loses, you win £10 plus your stake, if the horse wins you lose £10 X 10's , so you will lose £100

so if my stake is 10£, i can loose more than my stake right?

so when i lay, im not laying to come in the first 3, simply not to win?
thanks

depends what Market you lay on, win Market or Place Market

so i have the option of either?

I don't use Betfair (the laying option is too tempting and i know I am not disciplined enough to be sensible) but if you're looking for alternative options I would suggest that bet 365 is the best of them all.

I know that's not waht you asked but just thoguht I'd say it anyway.