I checked out before booking and yes they do refund you so personally i don`t see the problem with putting it on a credit card and then getting a refund , it`s not as though they are taking it from your current account and you`re going to miss the money .
As for them changing the price well if you`ve paid in full then they can`t ask you to pay more at a later date , i`ve checked that one out with a friend who works for travelodge and i`ve also receieved a conformation letter stating this , the only time they can take more from you is if you`ve only paid a deposit so be careful .
£65 for a family room for me and my dad is a right result , now i`m just gonna sit back and watch the prices rise and wait for the hotels to say that it`s now a minimum 2 night booking that weekend .
good luck though in whatever you choose , im well happy with what i`ve got !!!