If it says that you max can bet £5 or whatever - check how much you can have on each selection as a single. If you can have £10 on it as a single, then you can also include it in a £10 fivefold. I could have max £5 on Japan to beat Belgium for example. It was a pretty frustrating experience trying to find a fivefold I could have £10 on. I don't think I will become a regular sportsbook customer.
Fingers crossed for over 4.5 goals in the following matches: Turkey-Belarus, Lichtenstein-Estonia, Belgium-Japan, Poland-Ireland and Austria-USA